Floor Returns on Perimeter Overflow Pool

alphabet1

Member
Mar 30, 2016
6
Spain
Hello.

I haven‘t been on the forum in a long time, but my previous questions were answered so helpfully I thought I would ask some more!

I am hoping to build a perimeter overflow pool. The type with a small gap the entire way around.

My previous pool had an infinity edge so I understand the need for a balance tank, etc... But I have some questions regarding floor returns.

The way the pool is being built is relatively complicated. There will be a basement surrounding the deep end of the pool. It is not as elaborate as it sounds, it is actually a way of utilising the large empty space underneath one end of the pool decking.

It does, however, make plumbing the return lines slightly more difficult.

I was wondering whether I could use floor returns on the pool?

The pool is 65ft long x 13ft wide. If I was to put wall returns on both long walls then there would be very long, inefficient runs of return line pipe. If I was to install 6 or 8 floor returns, then the required plumbing would be much shorter, neater and easier to install.

As it is overflowing on all sides, I think the usual skimmer circulation that wall jets achieve is not strictly necessary.

I would be very interested in your thoughts.

Many thanks.
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
19,484
Bedford, TX
1,

I assume with a perimeter overflow pool you do not have skimmers... ???

If so, I see no reason to have wall returns.

Thanks,

Jim R.
 

alphabet1

Member
Mar 30, 2016
6
Spain
Thanks Jim.

No, there won’t be any skimmers.

It will be a bit like the pool in the attached photo.

When the pump is on, the pool overflows into a concealed gutter around the perimeter and travels via gravity to a buried water tank. It is then sucked from the water tank, filtered, heated and returned to the pool.

It is similar to the large sports-centre/community pools that have a plastic grate around the perimeter. Just made to look a little prettier.



1578673796827.jpeg
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
19,484
Bedford, TX
1,

I went swimming in a hotel in Germany that had perimeter overflow... I was impressed with the look.

If I remember correctly, it had wall returns, but smooth with the wall and no eyeballs.. It also had a swim jet at one end where you could swim in place.. Well, where someone younger and stronger could swim in place. I could only keep up for 15 seconds or so.. :mrgreen:

Thanks,

Jim R.
 

alphabet1

Member
Mar 30, 2016
6
Spain
Thanks mknauss, that’s why I ask the questions.

I had not thought about leaves and debris.

I think a debris basket on the surge tank inlet is a good idea.

There are no trees near the pool, so leaves should not be a huge problem. But I know they can blow in from considerable distances.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
20,446
Northern NJ
Below is the pool on the 5th floor of the Waldorf Astoria in Berlin, Germany. It is one of the most beautiful indoor pools I have been in. It has no skimmer and floor returns. I see no reason why you can't use floor returns.