Original > Hot Tub Forum
anti foam alternative ?
goneaway:
Cleaning my old filters i found the pleats full of brown sludge.
Its the same brown sludge I'd see on the sides of the tub shortly after using antifoam, in which case I'm refusing to use it on the new filters.
Its obvious to me, that its not water soluble.
Are there any alternatives, or home grown recipies that work well without clogging the filters.
My latest fill is only a week old, and despite taking a shower before use, and not washing costumes in soap, there's already the early stages of bubbles forming.
Hottubguy:
What's your calcium hardness level? Sometimes when that's low the tub can tend to foam
goneaway:
Good question, of which i'm not sure of the answer.
I use 4 way test strips, which shows all OK.
I'm pretty sure the latter is hardness, which is OK, however, i have nothing in my arsenal of chemicals to effect that.
chem geek:
Test strips usually only test for Total Hardness, not Calcium Hardness, and they aren't always accurate anyway. A Taylor K-2006 kit will test everything accurately including Calcium Hardness (CH). A CH of 120-150 ppm is usually enough to prevent foaming but not so high as to cause scaling.
goneaway:
Hi Chem Geek.
It's already complicated :'(
I have however, found this water quality chart from my local water company.
Is this any good as an indicator ?
Average Calcium readings were = 93 mg/l
http://www.ywonline.co.uk/web/WQZ.nsf/0/DB5E5071F371110F802574FD003D32D1/$file/Grimethorpe%202004%20WSZ.pdf
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