Recent content by auro

Re: ORP probe has some issues, it reports 770mV regardless o Yes, there are a lot of strange conclusions because even if the chemistry is well understood the rate at which things happen are not that studied. The many body effects are just too entangled to make simple generalizations. Anyway...

Re: ORP probe has some issues, it reports 770mV regardless o I`ve some updates. After doing experimenting and plenty or reading (look at this nice review, on poaa.org Cyanurics ~ Benefactor or bomb? by Kent Williams) I realized that my CYA makes my water uncontrollable. The recommended CYA for...

Re: ORP probe has some issues, it reports 770mV regardless o Uhmm interesting. If SI goes up with ph fixed and T fixed then TA must go up. Anyway let me check for 2-3 weeks what happens so I understand what to expect. It is true, SI brings micromanaging, but having a pool give fun also on the...

Guys, I have a 25K inground fiberglass-concrete pool (painted with expoxy paint). I bought an aquarite-pro with 40K cell a few months ago. It works perfectly (purchased from inyopool they gave me a good deal beating the competition..). Two weeks ago I bought a sense-dispense kit (from ezpoolz)...

Re: Ascorbic Treatment to rid Pool of metal stains update on citric acid I kept the ph to 7.0 sharp for 1 week and after the 3rd treatment of CA (12 lbs used in total, 4lbs each time) the stains are practically gone, with except 2-3 old ones which will require vitaminC tables hand scrubbing...

Re: Ascorbic Treatment to rid Pool of metal stains BTW, solubility of metals in water is higher at high temperature so the stain removal is easier in the summer than in the winter. All metal stains that I know, appeared during the winter while the alkalinity slowly builds up pH and there is not...

Re: Ascorbic Treatment to rid Pool of metal stains Unfortunately your vinyl liner prevents you to drain easily. Which sequestrant do you use ? How much do you need and how does it work ? I usually drain when some mess happens. The city water costs 60-70$ for a refill (no sewer charge once a...

Re: Ascorbic Treatment to rid Pool of metal stains Keep it away from light, in a PLASTIC sealed bag/container, possibly with the anti-humidity bags, in a cold place (not in the attic) and it will outlast your pool. Stefano

Hi there, I`ve a deep 25K gallons inground pool (fiberglass walls with concrete bottom). During the winter the alkalinity went up and some metal stained the walls (curiously, only the walls, not the bottom). Plenty of brown spots. It is probably copper since 1 year ago I had algae three times...