We are ready to install our 2nd return inlet and need to ask if anyone knows how close you can safely trench around a buried Doughboy. We had it installed May 2008, buried 3' and have done our dirt buildup around it all summer, watering it in and letting rain settle the dirt naturally. So we're not sure how hard/easy it will be to trench this dirt back up now to install a second return inlet, which is all the way to the other end of the pool. We didn't realize we'd really need that 2nd return for adequate circulation, given that we have a 7' deep end. Pool store didn't discuss this possibility with us, so we're dealing with the issue ourselves now!
Or should we just lay the pvc up next to the pool and enclose it in insulation tubing, since we'll be installing decking around it next summer? Our concern is that the pool will catch the blisterning north winter weather, particularly the side where the piping would be sitting on the ground up next to the pool. We're also installing a 2-sp Pentair Dynamo and will be running the pump 24/7 from then on. So the water should be passing through it enough that it shouldn't freeze, even if it's on top of the ground, right?
Since our pool is buried 3', our pad/equipment sits just slightly above the water level of the pool. Is it still considered, for equipment purposes, an above-ground pool? We currently have the tubing that comes automatically with these above-ground pools, connecting the return and intake.
Any advise would be greatly appreciated!