Recent content by Gembrain

Variable surface tension makes a lot of sense - would explain why it comes and goes a bit. The FLOC is fairly basic and has been used before without issues. All supplies from the same reputable supplier. It’s a new sand filter with new media replaced a few months back. Personally I feel a...

Hi Texas. My apologies, and quite take your point! I am told that everything is in balance by the pool operator and that Langlier test gives a very satisfactory result. Unfortunately I don’t have the actual test figures to back that up…….:) When I do finally get some I will post them up.

Thanks Texas. Have updated signature (sorry for delay - had to measure pool, list items, etc). Noted re pump bubbles. There are bubbles coming out of the return feeds that rise to the surface, form as a clump of small bubbles, maybe 3-4mm, then burst down to very small clumps with sub mm...

Could air in the system cause it on it's own with a balanced pool or would it need to be air combined with a chemistry imbalance?

All chlorine and acid is as before except I see they have been using Aquasparkle flocculant.

You can zoom in on a couple of the close-ups. Does it look exactly the same?

Other than increasing the Chlorine from 1.5 to 2.0 for Covid the chemicals are all the same as before and from the same supplier.

Definitely seeing air in the clear dome of the main pump. That also seems to come and go a bit in how much there is! Don't see bubbles coming up at the skimmers -although I did get a few BIG bubbles come out one time.

Soap or something added is certainly on the list but this is weeks now. Flocculant has been used, and a lot of water changed out. Also, it comes and goes in intensity.

Thanks - and greetings from this side of the puddle :)

So, we have an internal shared pool that's been run by one person for 20 odd years without issues. Beginning of this month suddenly we had something appear on the surface - which nobody can even agree on what it is. He doesn't know, local pool man doesn't know, the pool risk assessor hasn't seen...