Hi i have had a problem with my pool water going down over about 2 inches every 3 to 4 days. I thought at first the leak was just in the pump itself as there was small leak however I have turned the pump off for like 3 days and the water was down a couple of inches which means water has to be leaking from somewhere else.
Also, I noticed last year after i drained the water below the skimmer baskets for the winter the pool did not appear to ever lose water which leads me to further believe there is a leak somewhere in the plumbing in the skimmer line.
There are 2 things I have noticed. The 2nd skimmer basket that is further away from the pump has very weak suction and always have since we purchase the house last year.
Also, i tried repairing the pump leak itself and noticed that the water still slowly drains out of the filter basket at the pump itself after this which means the line is losing suction?
I have an inground pool and this is getting very frustrating at this point as all season I have had to add salt to my pool like every 2 weeks because the water keeps going down.
I have a strong feeling that the leak is possibly at the joints under the skimmer baskets because the previous owners put chlorine tablets in the skimmer baskets which is a terrible idea.
One other thing I wanted to mention is I am positive it is not evaporation because I use to think at first but, last night we had a torrential downpour and I had the pool pump off and I woke up this morning and the pool water is lower than it was last night with no pump running.
Should i try plugging both my skimmer baskets for like 48 hrs and see if the water level stays up? Is it possible the leak is in the line in the second skimmer basket since the suction is almost non existent in this line?
Also, I have a concrete pool, salt system with sand filter.