How Do I Find an In-Ground Pool Leak? : Pool Maintenance 

Your question is a little old, today is Dec 9th. Normal evaporation is about a 1/4" a day I'm told. What was the result of your investigation? I'm looking for a leak in My inground. pool. An Inch a day...

Franco Sanjinez it would be with the skimmer....his was pluged from the bottom

Hydrostatic valve failed or drain pots/pipes busted

I'm struggling with an inch water loss in 24 hours and then it stops just above the skimmer entry point. I have been using a+ B epoxy putty everywhere and it hasn't resolved the issue but the stuff sure works, so I would recommend buying some and sealing those hair cracks just for the hell of it. It won't hurt anything and it's super easy to do.

And still, if you plug it up you still have water in the pipe :/ so the leak can continue

good question as he didn't say WHERE to get them from, only to use them

your rocks were NOT heavy enough, use more rocks or a BRICK ...

I hv same problem with my pool. I hv concrete pool. I by my own got it constructed before one year. Its now leaking from somewhere, dont know from where.

Yes that’s right.

Ahhhh interesting

riighht! lol

Of course people expect free advice. Talk is cheap and there’s no liability.

That doesn't make sense, and you make a living doing this? Does the bucket or jar know it's almost full to the top or just half way? Quantity in bucket is immaterial it's the amount of latent evaporation in 24 hours!

Man Stuff Channel wind speed is why the bucket should be filled. A half full bucket us not getting the same evaporation rate as the pool.

1) His comment DOES make sense. What DOESN'T make sense is trying to determine the amount of something that doesn't even exist. There is no such thing as "Latent Evaporation"; but assuming you meant "Latent Heat of Vaporization" I still don't understand how that would apply. 2) The bucket doesn't need to "know" Physics for the matter inside to adhere to the applicable theory / law. Must a tree know Newton's law of universal gravitation for it's apples to fall to the ground? 3) The "quantity" (a.k.a. "volume") in a bucket IS MATERIAL. That is because the rate of evaporation increases when the surface area increases. It's all relative, so describing a surface area as large or small, is a comparison between the "exposed" water, and the "total" water. 4) So... Quantity is Volume. Volume is material to Surface Area. Surface Area is material to Evaporation. Evaporation IS affected by Quantity.

Yes I do leak detection in pool plumbing & structures. The bucket test that was explained to me yrs ago has worked without fail. I explain to use a 5gal bucket mark a line bout 2/3 & if you have steps sit it there I do this because water in the bucket becomes the same temperature as the pool’s; I have my reasons. For the pool water level it has simply been 1/2 way up the skimmer throat but if ya wanna use tape fine. Now you can start by running your system bout 12 hrs. After 12 compare. Now refill as before & don’t run the system; again after @ least 12 compare again. The rule of thumb is if it lost more on than off it points to the return side. Conversely more off than on the suction side & if the loss, again the rule of thumb, would indicate a structural flaw. The variables that exist re: these results are numerous, that’s where I tell my customers to start. FYI, Don’t think the hotter the weather the loss of water to evaporation is more; it ain’t. Go to pond or small lake after the sun has been on it all day during the fall or cooler weather & go back @ nite & watch the steam rise. Comprehend?

You need to do BOTH on and off...2 SEPARATE tests