Anyone heard of, or had experience with flow-reversal?

[mas985]

Don't go by a pool with an Intex pump. As I mentioned before they are rather pathetic. The Dynamo would have solved all those issues. But exactly how did you know for a fact that you weren't getting full circulation? Did you take multiple FC readings around the perimeter of the pool and did you see a large variation? That would be surprising to me.

As for multiple skimmers. Having two skimmers splits the flow so skimming action is reduced in each skimmer by 50%. Combined with low speed, it can be almost non-existent. I would only recommend a second skimmer for a very large pool or one with a potential dead spot (e.g. L shaped). AG pools don't tend to have dead spots. Also, if you have prevailing winds for the most part in a single direction, all debris will tend to flow toward one end of the pool and that is where the skimmer should be located. In this case, a second skimmer won't do you much good and you are better off with a single skimmer.

[DennisP]

That was exactly how I found out the mix sucked, by test readings and putting a dye in the pool... I could put it in on the far end and it would slowly sink and dissipate, but a half day later you had a blue blob directly under where you dumped it in. And that was without a filter in the bigger pump, so it was really sad...

Oh, I gotcha in regards to the skimming flow, in these discussions I always "assume" there is valving in place (I never do anything "half-way" and everything will be able to be turned on or shut off), so even with multiple skimmers, each skimmer would have a valve on it. The only item I considered not going that far is with dual main drains, and that is having them tee'd together and a single 2" run from the tee to a valve...

Ok, well the drains will be here tomorrow and I will have to decide if those are going in or not... I do believe I will put in the extra returns though...