- Jun 1, 2018
- 16,031
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Now I see. Gauge isn't returning to zero. Time for a new gauge, then will try DE again.

Now I see. Gauge isn't returning to zero. Time for a new gauge, then will try DE again.
Those light niches can be algae reservoirs.My other newbie learning today: I was brushing a light when it came loose from the housing. Apparently there were no screws attaching it. And it had a bunch of algae and plant material behind it and on the light's labels. The other light had one screw attaching it, but it had algae and plant material behind it, too. Before, I did not know that there was this hiding space for algae.
And the new gauge is in place. Real pressure is apparently 10 psi.
Hopefully things move along better now.
So are under and inside ladders, vinyl seams around skimmers and stairs, skimmers, weir doors and the foam in weir doors.I did not know that there was this hiding space for algae.