---
product_id: 472210709
title: "New 3in1 Toilet Blocks, Pack of 2, Toilet Limescale Remover Cistern Block, Toilet Cleaner Block with Cleaning and Foaming Action, Toilet Fresheners - Limescale Prevention"
brand: "bloo"
price: "€ 4.95"
currency: EUR
in_stock: true
reviews_count: 11
category: "Bloo"
url: https://www.desertcart.ie/products/472210709-new-3in1-toilet-blocks-pack-of-2-toilet-limescale-remover
store_origin: IE
region: Ireland
---

# Foaming blue water with every flush Up to 800 flushes per block Prevents limescale buildup effectively New 3in1 Toilet Blocks, Pack of 2, Toilet Limescale Remover Cistern Block, Toilet Cleaner Block with Cleaning and Foaming Action, Toilet Fresheners - Limescale Prevention

**Brand:** bloo
**Price:** € 4.95
**Availability:** ✅ In Stock

## Summary

> 🚽 Elevate your flush game — clean, fresh, and limescale-free every time!

## Quick Answers

- **What is this?** New 3in1 Toilet Blocks, Pack of 2, Toilet Limescale Remover Cistern Block, Toilet Cleaner Block with Cleaning and Foaming Action, Toilet Fresheners - Limescale Prevention by bloo
- **How much does it cost?** € 4.95 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/472210709-new-3in1-toilet-blocks-pack-of-2-toilet-limescale-remover)

## Best For

- bloo enthusiasts

## Why This Product

- Trusted bloo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Freshness:** Each block delivers up to 4 weeks of continuous cleaning and fragrance, ensuring your bathroom stays fresh without constant replacements.
- • **Effortless Installation:** Simply drop the dissolvable-wrapped block into your cistern—no mess, no fuss, just reliable cleaning with every flush.
- • **Subtle, Clean Fragrance:** Enjoy a fresh, pleasant scent with every flush that maintains a hygienic atmosphere without overpowering artificial odors.
- • **Vibrant Blue Water Effect:** Transforms your toilet water blue, signaling active cleaning and adding a splash of color to your bathroom routine.
- • **Powerful Limescale Defense:** Advanced foaming action actively prevents limescale buildup, keeping your toilet hygienically clean between deep cleans.

## Overview

Bloo New 3in1 Toilet Blocks combine powerful foaming action, limescale prevention, and fresh fragrance in a convenient dissolvable tablet. Designed to last up to 800 flushes per block, they keep your toilet water blue and hygienically clean from cistern to bowl, making bathroom maintenance effortless and effective for busy professionals.

## Description

Product Description A hygienically clean and fresh toilet from the cistern out with every flush! Make your loo the best seat in the house with a long-lasting Bloo toilet block that you can rely on. Bloo in cistern block gets your toilet shining again with cleaning and foaming action, giving you a hygienically clean and fresh toilet from cistern to toilet rim to bowl with every flush! Bring colour to your bathroom and turn your toilet water blue with Bloo blue water limescale technology that actively cleans between flushes! With a concentrated cleaning action designed to prevent limescale, this toilet unblocker range cleans from the cistern to bowl every time you flush for a long lasting, hygenic clean. How to use: There is no need to remove the pleated wrapper as this will dissolve in the water. 1. Open your cistern and drop the block, with the film on, into the cistern by the water float. 2. Allow 10 minutes for the block to settle before flushing. 3. Replace with a new block when the colour starts to fade. 4. Each block can last up to 800 flushes. Product details: . - Toilet cleaner In cistern block - Foams and cleans with every flush - Prevents limescale, toilet descaler - Toilet Tablets turns toilet water blue - Lasts up to 4 weeks each - Pair with Bloo toilet cleaner products range for full hygienically cleaning effect Ingredients 15-30 % Anionic Surfactants, 5-15 % Non-Ionic Surfactants, Further ingredients: Perfumes (Hexyl Cinnamal, Eugenol, Alpha-isomethyl Ionone, Coumarin, Citronellol)

Review: It’s a great option for those looking to maintain a clean, fresh-smelling toilet - The Bloo Toilet Blocks Limescale Prevention offer an easy and effective solution to keeping your toilet fresh and free from limescale build-up. These toilet blocks are designed to be dropped into the toilet cistern, where they work to help prevent limescale and grime while providing a fresh, clean fragrance with every flush. Here’s an honest review of its features, pros, and cons: What’s Great: Effective Limescale Prevention: One of the key benefits of these toilet blocks is their ability to prevent limescale build-up in the toilet bowl. In areas with hard water, limescale can accumulate quickly, making the toilet look unsightly and difficult to clean. Bloo Toilet Blocks help to reduce this build-up, keeping your toilet cleaner for longer and making it easier to maintain. Fresh Fragrance with Every Flush: The Bloo Toilet Blocks come with a fresh, pleasant fragrance that’s released with every flush. The scent is clean and subtle, not overpowering, making it ideal for people who want a fresh-smelling toilet without a strong chemical or artificial odour. It helps to maintain a hygienic atmosphere in the bathroom, ensuring a refreshing experience each time you use the toilet. Convenient and Easy to Use: These toilet blocks are very easy to use – simply drop one into your toilet cistern and let it dissolve over time with each flush. There’s no need for complicated installations or messy applications. The simplicity of the product makes it a hassle-free addition to your toilet cleaning routine, perfect for those who want an easy and effective way to keep their toilet in good condition. Long-Lasting: The Bloo Toilet Blocks are designed to last for an extended period, so you won’t need to replace them frequently. Each block provides continuous cleaning and freshening for up to several weeks, making them a cost-effective option for long-term use. This means you get reliable, ongoing protection against limescale without needing constant replacement. Helps Maintain Toilet Hygiene: By preventing limescale and providing a fresh scent, Bloo Toilet Blocks also help to maintain overall toilet hygiene. They provide a bit of extra cleaning power between deep cleans, helping to keep your toilet looking and smelling fresh for longer periods. What Could Be Improved: Limited Limescale Removal Power: While the toilet blocks are great at preventing new limescale build-up, they may not be as effective at removing existing limescale deposits that have already formed in the toilet. If your toilet has significant limescale stains, you might need a more powerful cleaner in addition to the toilet blocks for a deeper clean. Fragrance May Not Last Long Enough for Some Users: Some customers have noted that the fragrance provided by the toilet blocks doesn’t last as long as they would like. While the scent is pleasant initially, it may fade more quickly than expected, especially with frequent flushing. This may require replacing the block sooner than anticipated for those who want a consistently fresh scent in their toilet. Effectiveness May Vary by Water Hardness: The effectiveness of Bloo Toilet Blocks can vary depending on the hardness of the water in your area. In places with very hard water, the blocks may not prevent limescale as effectively as in areas with softer water. If you live in an area with extremely hard water, you might need a more specialised solution for tackling limescale build-up. Noteworthy Observations: Affordable and Accessible: The Bloo Toilet Blocks are relatively inexpensive and can be found easily in most supermarkets and online stores. This makes them an affordable option for anyone looking to maintain a fresh-smelling, limescale-free toilet without spending too much on expensive cleaning products. Environmentally Friendly Option: While the product provides effective cleaning and fragrance, it’s worth noting that the packaging is plastic-based, and users concerned about environmental impact may want to look for alternative products with eco-friendly packaging or biodegradable options. However, the convenience and effectiveness of the product may outweigh this consideration for many. Verdict: The Bloo Toilet Blocks Limescale Prevention are a simple, affordable, and effective way to keep your toilet fresh and reduce limescale build-up, especially in areas with hard water. Their ability to provide a clean fragrance with every flush and prevent new limescale accumulation makes them a worthwhile addition to your toilet cleaning routine. While they may not be as effective at removing existing limescale stains and the fragrance could last longer, the product delivers on its promises of convenience and ease of use. Overall, it’s a great option for those looking to maintain a clean, fresh-smelling toilet without the need for constant scrubbing.
Review: THE BEST BLOCKS THAT WE'VE TRIED. - Last a long time, smell nice, colour the water blue, seem to clean and remove stains well, just drop in cistern, easy to use thanks to the dissolvable film and the bog always looks and smells clean after a flush. That's a result in itself in our house.

## Features

- Causes serious eye damage.
- Causes skin irritation.
- Harmful to aquatic life with long lasting effects.
- New: New Bloo toilet cistern blocks for stronger and longer lasting results to keep your loo fresh and clean. With additional limescale prevention action.
- Fresh and clean: Bloo toilet blocks give you a hygienically toilet cleaning foam from the cistern as well as foaming action and blue water with every flush.
- Toilet limescale remover: Bloo toilet cistern blocks create a strong foaming action to prevent limescale, keeping the loo hygienically clean in between deep cleans.
- Clean colour: Bring colour to your bathroom and turn your toilet water blue with the blue toilet blocks which freshen and target limescale between flushes.
- Long Lasting: The blue toilet stain remover block lasts for multiple flushes, up to 800 flushes (4 weeks per block) of cleaning and foaming blue water action.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B9C6PV82 |
| Best Sellers Rank | 355 in Grocery ( See Top 100 in Grocery ) 5 in De-Scalers |
| Brand | Bloo |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,601) |
| Date First Available | 10 Aug. 2022 |
| Format | Tablet |
| Item model number | 2856304 |
| Manufacturer | Henkel |
| Package Dimensions | 16.8 x 12.6 x 3.2 cm; 100 g |
| Units | 2 Count |
| Volume | 5 Cubic Inches |

## Product Details

- **Brand:** Bloo
- **Item form:** Tablet
- **Item volume:** 80 Millilitres
- **Material feature:** Long lasting, Scented
- **Number of items:** 1
- **Scent:** Unscented
- **Special feature:** Concentrated, Descaler, Prevents Limescale, Removes limescale
- **Specific uses for product:** Toilet
- **Surface recommendation:** Toilet
- **Unit count:** 2 Count

## Images

![New 3in1 Toilet Blocks, Pack of 2, Toilet Limescale Remover Cistern Block, Toilet Cleaner Block with Cleaning and Foaming Action, Toilet Fresheners - Limescale Prevention - Image 1](https://m.media-amazon.com/images/I/81lKwYVKqHL.jpg)

## Questions & Answers

**Q: Can you still put a rim block in toilet when using these? Thanks**
A: Yes you can use the blocks in the system and a rim block round the basin.  It makes it stronger and cleans the toilet much better.
Love the blue water as it looks so fresh and clean.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It’s a great option for those looking to maintain a clean, fresh-smelling toilet
*by A***R on 26 January 2025*

The Bloo Toilet Blocks Limescale Prevention offer an easy and effective solution to keeping your toilet fresh and free from limescale build-up. These toilet blocks are designed to be dropped into the toilet cistern, where they work to help prevent limescale and grime while providing a fresh, clean fragrance with every flush. Here’s an honest review of its features, pros, and cons: What’s Great: Effective Limescale Prevention: One of the key benefits of these toilet blocks is their ability to prevent limescale build-up in the toilet bowl. In areas with hard water, limescale can accumulate quickly, making the toilet look unsightly and difficult to clean. Bloo Toilet Blocks help to reduce this build-up, keeping your toilet cleaner for longer and making it easier to maintain. Fresh Fragrance with Every Flush: The Bloo Toilet Blocks come with a fresh, pleasant fragrance that’s released with every flush. The scent is clean and subtle, not overpowering, making it ideal for people who want a fresh-smelling toilet without a strong chemical or artificial odour. It helps to maintain a hygienic atmosphere in the bathroom, ensuring a refreshing experience each time you use the toilet. Convenient and Easy to Use: These toilet blocks are very easy to use – simply drop one into your toilet cistern and let it dissolve over time with each flush. There’s no need for complicated installations or messy applications. The simplicity of the product makes it a hassle-free addition to your toilet cleaning routine, perfect for those who want an easy and effective way to keep their toilet in good condition. Long-Lasting: The Bloo Toilet Blocks are designed to last for an extended period, so you won’t need to replace them frequently. Each block provides continuous cleaning and freshening for up to several weeks, making them a cost-effective option for long-term use. This means you get reliable, ongoing protection against limescale without needing constant replacement. Helps Maintain Toilet Hygiene: By preventing limescale and providing a fresh scent, Bloo Toilet Blocks also help to maintain overall toilet hygiene. They provide a bit of extra cleaning power between deep cleans, helping to keep your toilet looking and smelling fresh for longer periods. What Could Be Improved: Limited Limescale Removal Power: While the toilet blocks are great at preventing new limescale build-up, they may not be as effective at removing existing limescale deposits that have already formed in the toilet. If your toilet has significant limescale stains, you might need a more powerful cleaner in addition to the toilet blocks for a deeper clean. Fragrance May Not Last Long Enough for Some Users: Some customers have noted that the fragrance provided by the toilet blocks doesn’t last as long as they would like. While the scent is pleasant initially, it may fade more quickly than expected, especially with frequent flushing. This may require replacing the block sooner than anticipated for those who want a consistently fresh scent in their toilet. Effectiveness May Vary by Water Hardness: The effectiveness of Bloo Toilet Blocks can vary depending on the hardness of the water in your area. In places with very hard water, the blocks may not prevent limescale as effectively as in areas with softer water. If you live in an area with extremely hard water, you might need a more specialised solution for tackling limescale build-up. Noteworthy Observations: Affordable and Accessible: The Bloo Toilet Blocks are relatively inexpensive and can be found easily in most supermarkets and online stores. This makes them an affordable option for anyone looking to maintain a fresh-smelling, limescale-free toilet without spending too much on expensive cleaning products. Environmentally Friendly Option: While the product provides effective cleaning and fragrance, it’s worth noting that the packaging is plastic-based, and users concerned about environmental impact may want to look for alternative products with eco-friendly packaging or biodegradable options. However, the convenience and effectiveness of the product may outweigh this consideration for many. Verdict: The Bloo Toilet Blocks Limescale Prevention are a simple, affordable, and effective way to keep your toilet fresh and reduce limescale build-up, especially in areas with hard water. Their ability to provide a clean fragrance with every flush and prevent new limescale accumulation makes them a worthwhile addition to your toilet cleaning routine. While they may not be as effective at removing existing limescale stains and the fragrance could last longer, the product delivers on its promises of convenience and ease of use. Overall, it’s a great option for those looking to maintain a clean, fresh-smelling toilet without the need for constant scrubbing.

### ⭐⭐⭐⭐⭐ THE BEST BLOCKS THAT WE'VE TRIED.
*by J***N on 16 November 2025*

Last a long time, smell nice, colour the water blue, seem to clean and remove stains well, just drop in cistern, easy to use thanks to the dissolvable film and the bog always looks and smells clean after a flush. That's a result in itself in our house.

### ⭐⭐⭐⭐ Owerful but Potentially Problematic
*by H***7 on 11 June 2025*

Having used a wide array of toilet maintenance products over the years—from gels and discs to fizz tabs and bleach solutions—Bloo’s Original Blue In-Cistern Blocks immediately stood out for their sheer convenience and visual satisfaction. Drop it in and forget about it for several weeks? Easy. But as someone who maintains properties professionally and pays close attention to what happens beneath the surface, this little blue powerhouse isn’t without its warnings. First off, yes—it works impressively well on the surface. Each flush releases a rich blue swirl that’s both satisfying and clearly doing something. You notice less limescale build-up in the bowl, odours are kept in check even in high-use households, and there’s a clear foaming action that suggests it's actively cleaning. Over the course of four weeks, one block handled hard water scale, toilet rim residues, and that unspoken bathroom film with noticeable efficiency. However, the hidden trade-off? The inner cistern. After two months of back-to-back use, I noticed something odd in one client’s WC. The toilet began leaking from the base, and upon inspection, the flush seal (a rubber component that forms part of the siphon or flush valve) had deteriorated badly. It was softening, cracking at the edges, and had absorbed an unusual blue tint. The water left in the cistern had taken on a slick feel—almost slippery like a light detergent solution. Testing confirmed what I suspected: the active components, particularly the colourant and limescale agents in Bloo’s formulation, had gradually compromised the rubber seal integrity. The replacement cost wasn’t high, but for those with older cistern parts or non-standard fittings, it’s something to be aware of. Professionally, I now only recommend Bloo blocks in toilets where the cistern has synthetic seals (silicone or PTFE based) or where routine maintenance includes seal inspection every 6–12 months. For more delicate or rarely inspected cisterns—especially those using rubber-based drop valves or older flappers—these blocks can gradually degrade key internal parts. It’s not immediate, and many users might never notice, but it’s a hidden risk if left unchecked. On the plus side, the formulation is potent. It truly does reduce limescale over time, particularly if you're in a hard water area. The scent is crisp, not overly chemical, and the deep blue dye gives visual reassurance that the product is still working. It’s incredibly easy to install—no unwrapping, no fuss, just drop it near the float and you’re done. Each block lasted about 3–4 weeks in standard flush use and up to 5 weeks in a downstairs cloakroom with lower footfall. In terms of presentation and user-friendliness, it’s a winner. Pros: – Powerful limescale prevention and surface cleaning – Long-lasting (800 flushes per block is realistic) – Excellent value, especially in multipacks – Colour-changing indicator lets you know when it’s time to replace – Easy installation with no unwrapping required – Keeps the bowl fresh and blue between cleans Cons: – Can degrade rubber flush seals and gaskets over time – May cause unexpected leaks in older or sensitive cistern systems – Slightly greasy chemical feel to the water in the tank – No protective casing or child-safe packaging – Not suitable for macerators or wall-hung units without regular maintenance access Final thoughts: If you’re the type who wants a hands-off toilet cleaner that works visibly and doesn’t smell like hospital bleach, Bloo Original Blue is excellent—as long as you’re aware of the caveats. I’d advise using it with caution in high-end toilets or those with older plumbing. And if you're in a rental or managing multiple properties, periodic checks on seals and internal cistern fittings are a must. It’s a five-star performer when judged solely on cleaning power and convenience, but loses a star in my book due to the potential for long-term damage. A great product, but with a reminder: what it cleans in your bowl may wear away what’s behind the scenes. Use smartly.

## Frequently Bought Together

- Bloo Toilet Blocks Limescale Prevention, Pack of 2
- Harpic Power Plus Deep Cleaning Toilet Tablets, Original Scent, Pack 1 x 6 Tablets, Deep Clean Without Scrubbing, Removes 100% Limescale, Toilet Cleaner
- Dr. Beckmann Service-it Deep Clean Washing Machine Cleaner | Removes 99,99 % of bacteria and fungi and viruses | eliminates bad odours | 250 g

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-06*