My 16 x 32 AG pool with deep end (15,000 gal.) has one skimmer and one return. I would like to add more return "eyeballs" to get better circulation (One at each end and one on each side – for a total of 4). Is this a good idea and what's the proper way to do it? I'm thinking of running a completely new hose around the base of the pool and teeing off at each return to have them attached in series (and do away with the single short hose going to the one existing return). Could the tees be on the ground with a short hose running up to the eyeball or should the tees be at the eyeball with the main hose rising up to the level of the eyeball and tee for less total hose length? (The first choice would look better but the second choice seems more efficient.)
I was considering putting all at the same level as the original which is just below the surface, but as I write this I'm thinking some could be a little closer to the bottom. Is there any benefit to lowering them and is there a practical limit as to how close to the bottom the returns can be? Since the eyeballs can be aimed, maybe all at same level is best?
The one single return at the deep end seems to work OK, except at the shallow end where the wedding cake steps are. This idea started with adding one return line at the shallow end to help eliminate the algae that accumulates at the steps, with water flow directed at/under them. Now I’m thinking it won’t be much more trouble to add several – if it’s not a wasted effort!
I have a 20” sand filter with 1.5 HP pump motor, which I think should easily overcome any additional flow restriction introduced by the extra hose running around the pool.
I believe this covers everything. Please let me know what you think! I’ve searched the forums in particular and the web in general and can’t seem to find this information.