Search results

Since 2008, I have had a fiberglass inground pool, 7m x 3.5m (23ft x 11.5ft), 25000 liters (6600 US gallons). Until recently the only testing I do is what was supplied by the pool supplier, ie. oto for Chlorine and phenol red for pH. So far I have managed reasonably well. For Chlorine, I use...

I have a fiberglass inground pool, 7m x 3.5m (23ft x 11.5ft), 25000 liters (6600 US gallons). On starting up for the summer the pH was very low, so I over a few days I added a few kilos (several pounds) of Soda Ash (sodium carbonate) to raise the pH to the correct range. A few days later, purple...