Quote Originally Posted by DennisP View Post
As a result I have found all the following major plusses:

- Increased circulation within the pool
- Collection of debris at the bottom near the drains
- I always have circulation, regardless of how "full" the skimmer gets (I have them both cut in full at the pump)
- Draining of the pool (excess water from rain, or draining to winterize) is easy


I will say, the skimmer works best without the main drains being cut in, but that is also dependent on a single return being used (seemed to force the largest amount of floating garbage to the outside quicker).

But, with both returns, the main drain and the skimmer all operating full, the pool had the best circulation, the surface always stayed clear, the garbage collected near the main drains as much as possible (which means vacuuming was kept to minimum, since all you do it shut off the skimmer and the main drains sucked in as much as possible) and in general the pool was as low-maintenance as possible.
Dennis, Can I post and this may wind you up a bit but I don't mean to, just trying to go nearer to what really takes place?
Increased circulation of mainly clean water from midway down the pool?
Collection of debris at the bottom near the drains, if the skimming action was working well there wouldn't be debris on the bottom? Dirt enters from the surface first? Near, near the main drains, not into the main drains so not clearing the debris unless you push it in, so misses the dirt and just circulates cleaner water from above the dirt layer.
I always have circulation regardless of how full the skimmer gets, A second skimmer? for the reasons stated above?
Draining the pool, well yes that's why they were fitted but a submersible pump or opening a return?

I can see the heating point though.
Please don't take this the wrong way, I am just discussing.