Was away for a while (vacation) and came back to an issue. We had a yellowish looking substance collecting on the shady side of the pool between the floor and the wall. It was also in patches on the bottom of the pool. When I brushed it, it just looked like powder and disappeared only to be back in an hour or two. I noticed there was some of it clinging to the walls so I figured it was mustard algae.
I slammed the pool for a day and a half mustard shock level, adding bleach every two hours. The next night it was gone, did an ONLT and did not loose anything.
Yesterday, noticed some stuff on the floor only, more of a grayish color. Vaccumed it out, took out the cartridge filter and cleaned it and did another ONLT last night only loosing 0.2.
This morning, the same stuff is on the floor again. I am going crazy!
We have had problems with pollen all year (live in the country by woods and two fields that are bailed often). I am not sure if it is that, or dead algae that is settling on the floor. Any ideas?