I'm a new swimming pool owner. Pool is inground. I need to adjust the water overflow, and don't know how.
It seems the default water lever is just barely above the bottom of the skimmer. Within a few days or a week at most after adding water, the water level is too low and the pump is sucking air. If I add water, the water level drops very quickly back to the default level, then remains there for a week at most. I suspect the overflow is the pipe sticking up just above ground level just outside the lanai, but I have no idea how it works or how the water level could be raised. Thought I'd ask here before I try to DIY blindly. TIA for any help.
Answers:
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It's a little odd that anyone would put an "overflow" line into a pool, unless perhaps it's an indoor pool and there may be a possibility of flooding due to an absent minded owner leaving the fill water on. Even in that case, most builders will instead use a fill valve with a timer or if an automatic fill valve is used, they are adjustable to the water height you need. They work almost like a toilet tank's fill valve.If for some strange reason they did add some line running from the pool , to outside the pool, that is meant to equalize the height between the top of the pipe you mention and the height of the water, it will be passive equalizing. Does it on it's own.
All you'd need to do is to add a little more pipe, using a coupling, to raise the height it's equalizing at. Measure how much higher up the skimmer you want the max water level to be and add that much pipe.
I'd be making sure that line is actually what you think it's for first though. If you have an integrated spa on that pool, it could be the air line for it. Look around the pool walls for any unexplained openings that may be covered by a weir or just a bare opening that serves no puropse. Use a shop vac to blow down that pipe outside the lanai and have someone inside tell you if they see bubbles. Depending on the length of run, it may take upwards of 30 seconds or so to see. Unfortunately, if it does turn out to be exactly that, an overflow, you may dislodge some debris in the pipe and send it into the pool. Nothing a quick vac job can't fix.
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