Dusty Bottom/Cloudy Water Issues

[Watermom]

There is no harm, but it really isn't necessary. If it is catching brown and green gunk and your filter pressure is rising, then it is working. If it wasn't working, it wouldn't be catching stuff because it would be blowing it through the filter and back into the pool and thus your pressure wouldn't be rising.

[MattTexas]

@Watermom-

I AM getting gunk when I backwash, but... see #14 above. For whatever reason I've never been able to measure a rise in pressure on my tank, even if I wait many weeks between backwashes.

[MattTexas]

Update:
Measurement at dusk last night 16ppm (0 measurable CC)
Measurement 1 hour after dawn today 16ppm (0 measurable CC)
Will maintain chlorine levels at 15+ today and repeat again tonight.

I backwashed yesterday and got plenty of brown gunk, but still curious about why my pressure gauge doesn't rise on this tank (see #14 above).

[williamsjp]

I don't know if your problem is solved but it all happened to me as well.

Mine was pollen silt...I put 1 cup of DE in my skimmer (I have a sand filter) moved the water for a couple of days steady TA-DA it's gone.

I will warn you though backwash everyday because if you don't the silt will still be your sand and blow right back in. The other thing is your pool will be cloudy for awhile if you don't put clarifier in there pretty quick.

[aylad]

I don't know if your problem is solved but it all happened to me as well.

Mine was pollen silt...I put 1 cup of DE in my skimmer (I have a sand filter) moved the water for a couple of days steady TA-DA it's gone.

I will warn you though backwash everyday because if you don't the silt will still be your sand and blow right back in. The other thing is your pool will be cloudy for awhile if you don't put clarifier in there pretty quick.

The issue here is that the poster has zeosand, rather than filter sand, and we're still not sure of the effect of the DE on the zeo. Thanks for your comment, though, because it's just one other documented case where what we teach here does work!

Janet