How would the gauge assembly hold up to contact with liquids (left in loop permanently)?

Lol this gauge is to test the loop before you add any liquid if your loop hold air for 30 minutes then you good to go

Is it normal to see a small amount of pressure drop if I leave for a few hours or overnight?

You shouldn’t have no pressure loss. You shouldn’t leak test for a few hours or overnight. 30 minute leak test with zero pressure loss your 100% to go to fill with liquid.

How are the 0.05 bar increments measured on the guage? Is it every 2 lines or 1 line?

every line is around 0.05 bar, I say around since you have nine lines between 0 to 0.25 and 10 lines between 0.25 to 0.5

Will this work when putting all tubes together then doing the leak test on the fill port? I read someone was doing it individually how??

The way you are thinking is by building your whole loop, while that will work, if you do end up having a leak it'll be a pain to find it. Testing individually would by pumping up each block/pump/reservoir/radiator individually as to isolate and possible leaks immediately. If you use the one by one method I'd conduct another test once its all built.

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Water Blocks EKWB EK-Leak r

Product ID: 352838610

Details

Brand
EK
Power Source
Battery
Color
silver
Manufacturer
EKWB
Global Trade Identification Number

💧Leak Testing Gauge

🔧CNC Machined Aluminum

⚙️Revolvable G1/4" Fitting

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€ 141.37

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Sold byAmazon IrelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💦 Test with Confidence: Keep Your Cool Running Smoothly!

SAFETY FIRST - Fast and reliable leak detection to protect your valuable components.
COMPLETE TESTING KIT - Includes a small pump for easy pressurization of your cooling system.
CUSTOM TESTING GAUGE - Designed specifically for liquid cooling loops with clear pressure markings.
USER FRIENDLY DESIGN - Revolvable male G1/4" fitting for versatile installation.
PRECISION ENGINEERING - Crafted from solid CNC machined aluminum for durability.

The EK-Leak r is an essential tool for any liquid cooling enthusiast, providing a reliable and efficient method to test for leaks in your cooling loop. Made from high-quality CNC machined aluminum, it features a custom gauge for precise pressure readings and includes a pump for easy operation. With its revolvable G1/4" fitting, this product ensures a seamless integration into your setup, prioritizing safety and performance.

Specifications

ASIN	B07WGDW2K5
Best Sellers Rank	#1,755,407 in Automotive ( See Top 100 in Automotive ) #177 in Air Conditioning Leak Detection Tools
Brand	EK
Brand Name	EK
Color	silver
Customer Reviews	4.5 out of 5 stars 410 Reviews
Global Trade Identification Number	03831109816738
Manufacturer	EKWB
Measurement Type	Pressure
Model	3831109816738
Part Number	3831109816738
Power Source	Battery Powered
Specification Met	Ekwb, Safety Standards Compliant
Unit Count	1.0 Count

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