[FONT="]Hello experts[/FONT]
[FONT="]I live in Denmark and took over a house with a pool 10 years ago. Unlike most pools here (Liner vinyl) it is a tile pool.[/FONT]
[FONT="]It is from the 70s but has proven solid up until two month ago when it started to loose water - about 1 inch per day.[/FONT]
[FONT="]I have closed all the valves for the pipes. The water level has sunk below the pool inlet valves. I also have a bottom drain but i am worried that the hole is in the concrete itself.[/FONT]
[FONT="]At first i figured the hole must be at the level where the water stopped but I understand now that the hole can be at pinhead size below that level because of the high pressure. To verify I filled the pool and the level dropped again but not to the exact same level as before. If it had stopped at the exact same level I would assume that the hole would be at that level but now I am afraid the case is that leaking stopped because the pressure no longer is high enough.[/FONT]
[FONT="]What do you guys think? Am I making the right conclusions here?[/FONT]
[FONT="]And what is the next step?[/FONT]
[FONT="]I have discussed the problem with a friend and we are planning to drain the pool completely and "jump in" to do a close up inspection of each square inch of the pool and knock on each tile to reveal loose tiles or concrete.[/FONT]
[FONT="]I don't suppose some miracle treatment or sealent exist that I can just apply to the hole surface or concrete joints to seal the hole?[/FONT]
[FONT="]What do I do if I can't find the hole?[/FONT]
[FONT="]Any ideas are very welcome...[/FONT]
[FONT="]Picture of pool:[/FONT]
https://ibb.co/iju1Aa
[FONT="]I live in Denmark and took over a house with a pool 10 years ago. Unlike most pools here (Liner vinyl) it is a tile pool.[/FONT]
[FONT="]It is from the 70s but has proven solid up until two month ago when it started to loose water - about 1 inch per day.[/FONT]
[FONT="]I have closed all the valves for the pipes. The water level has sunk below the pool inlet valves. I also have a bottom drain but i am worried that the hole is in the concrete itself.[/FONT]
[FONT="]At first i figured the hole must be at the level where the water stopped but I understand now that the hole can be at pinhead size below that level because of the high pressure. To verify I filled the pool and the level dropped again but not to the exact same level as before. If it had stopped at the exact same level I would assume that the hole would be at that level but now I am afraid the case is that leaking stopped because the pressure no longer is high enough.[/FONT]
[FONT="]What do you guys think? Am I making the right conclusions here?[/FONT]
[FONT="]And what is the next step?[/FONT]
[FONT="]I have discussed the problem with a friend and we are planning to drain the pool completely and "jump in" to do a close up inspection of each square inch of the pool and knock on each tile to reveal loose tiles or concrete.[/FONT]
[FONT="]I don't suppose some miracle treatment or sealent exist that I can just apply to the hole surface or concrete joints to seal the hole?[/FONT]
[FONT="]What do I do if I can't find the hole?[/FONT]
[FONT="]Any ideas are very welcome...[/FONT]
[FONT="]Picture of pool:[/FONT]
https://ibb.co/iju1Aa