When our vinyl pool was dug a couple years ago we hit water in the deep end. Not terrible, but we elected to put in a dry well just to be safe, but we never attached a pump to it. When opening the pool a couple days ago, we had some shallow end WALL liner float. I suspect this is due to the 4 inches plus of rain that we had a couple days before. Water was running like a fire hose out of our french drains. We've not had a problem before and we're lucky that the liner settled back into place nicely.
I'd like to get a pump to have on hand here to help prevent liner float again. I'm looking for suggestions as I am most definitely not a pump expert.
The pool is freeform, with a 28x50 footprint. Deep end is 8 feet, well is I believe 1-2 feet of gravel below the deep end. There's a flexible pvc pipe that comes out of the gravel and runs to the pool equipment. In all it's about a 10 foot rise, and I would guess that the total length of the pipe is around 25 feet assuming they ran it relatively straight and that it isn't on much of a vertical angle. The pipe is capped with 2 pieces. 1 is a fitting that is glued on that is female threaded. That is capped with a a Hayward SP-1022-C plug, which from what I can tell appears to be a 1 1/2 inch male threaded plug.
In order to be able to pump out the deep end on demand, I think I will only need:
1) A pump - I'm looking for a low budget pump, but one that will work, not hurt the pool by sucking the water out too quickly, and preferably not kill me by blowing up.
What horsepower do I need? Am I looking for a "drywell pump?" Would a used AGP pump work given the right specs if I prime the drain? Hoping to stay well under $200. I've seen many pumps on ebay etc for $99-$130. No idea if they're good enough.
2) Fittings and hoses/pipes - I'll need fittings to connect to the 1 1/2 inch female screw connector on the pipe to the pump itself. I envision a fitting to convert that cap to a hose that will connect to the pump. I'll also need a waste hose for the exiting water from the pump. I'd appreciate suggestions here too based on the pump(s) that are suggested.
And a bit off topic: I would love if this pump could also be used come closing time to either blow out or suck out the water from the skimmer and return lines. I've used a shop vac in the past for this with very limited success but have been ok pairing this with antifreeze. If I found a used "mightvac" could that be used as a drywell pump? And are there other suggestions to mightyvac?
Thanks so much! Love this forum.