Repair plumbing leak underground? Tips, tricks, or magic!

CaveDiver86

Well-known member
Jun 7, 2017
74
Wellborn, FL
I need help. I have had my pool up and running now for about 6 weeks. In that time I have learned a lot about keeping the water balanced because I keep loosing water and have to keep adding salt,stablizer,acid,sequester,ext.

If my pump is running for 24hr I am loosing about an inch of water a day. I have it set for 6hr a day and am loosing 1/4". I know it's not the liner because I didn't loose any when The pump didn't run.. I know its not evaporation because I'm loosing too much chemical (salt/cya). So it has to be a leak. The question is where? Does it pay to hire a leak detection company? I'm pretty handy just dont really know where to start. I also keep getting air i. The system. At any given time i can bleed air from the filter and every once in a while you can see bubbles coming out of all the returns.
 

Brianf60

Well-known member
May 18, 2017
164
Bradford ontario
How about capping each line and pressure testing. You should be able to make an adapter using fittings, pipe and a ball valve from your local Home Depot. This will allow you to isolate the leaking line with minimal investment.
 

Brianf60

Well-known member
May 18, 2017
164
Bradford ontario
I would pressurize to 25 PSI. The main thing is to ensure that it will maintain that pressure for a few hours. What pressure does your pump usually run at? Slightly higher than that would be enough since you know it leaks at that pressure.
 

vermaraj

Well-known member
Jul 6, 2015
97
Long Island City, NY
Start with your valves. Check the packing glands (under the handle on ball valves), grease ports and where the handle attaches to three way valves.

Then check the above ground joints. Look for evidence of weeping. Or on the suction side spray with soapy water and watch for bubble movement around the joint.