Brown Slime in Micro Filter & Yellow Stinky Water
(New Zealand )
Our Spa pool was new three months ago, it came with two filters and one micro filter. We used "simply silver" as our sanitiser.
Slowly the water turned yellow and started smelling like a bad tadpole tank. We noticed the micro filter (which is not to be cleaned, only normal filters get cleaned) had brown slime around it. Five days ago after clearing out excess dirt etc...
We removed the simply silver and immediately added our lithium sanitizer (70% lithium hypochlorite) 3 to 4 teaspoons a day to raise the chlorine level (running filtration 10 hours per day) cleaning the two filters each day, the chlorine reading is 20 but the water is still yellow (it never went cloudy or whitish) we were under the impression that this should be starting to clear - what are we missing?
Is there anything else we can do.
Thanks for the question Simone
I'd like to have your complete chemical readings, the actual numbers:
Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, and Metals (iron and copper) and names of any algaecides you may have used along with clarifiers, phosphate removers, and/or flocs. It makes troubleshooting much easier.
Next is the use of lithium hypo. In effect, it's the same as pool chlorine just at a higher price. You'd be better off using regular chlorine or grocery store bleach. Just double the amount of the bleach.
I'm not too familiar with "simply silver" but could that be a copper silver ionizer? If it is you may be putting too much copper into the water. This can cause stains and unbalanced water.
Normally an ionizer and Ozone are a waste of money. You'll always hear about this and that product that's better than chlorine or bromine. Nothing is further from the truth.
If you're shocking the hot tub you need to do it all at once, not over a period of time. Shocking is a process, not an event. The trick is to get AND keep the chlorine above 10 - 12ppm for a period of time. You'll need to manually dose the spa with with chlorine.
It sounds like the chemical numbers are off. Give them to me and we can go from there.