After doing a metal stain removal treatment, adding a sequesterant and re-balancing pool I am have a daily struggle with the stains reattaching to the pool surfaces. Each time this has happened the pH has been at 7.2 or below and my FC level has been at 5-6 with a CYA of 70. The instructions for the sequesterant say a maximum safe level is set at 1 Litre in 50000 litres. My initial dose was 270mls for our 27,000 litre pool and thereafter I have been adding 135mls almost daily to remove the continual staining.
I rang the company who supplies the product and was told I’m three quarters through the process and that the next step is to remove the metals from the water. I didn’t think this was possible using a chemical? Their advice was as follows:
Step 1: Place a clarifying gel block in skimmer (to attach to the metal particles once I re-dose to remove them off the walls again)
Step 2: Add another 270mls of sequester
Step 3: Run filter for 24 hours
Step 4: Change from filter to backwash and at the same time slowly pour 5 litres of acid into the skimmer to remove the metal from the filter and out through the backwash
Step 5: Recheck pH, it should not be affected but if it is then rebalance
Is this sound advice?
I rang the company who supplies the product and was told I’m three quarters through the process and that the next step is to remove the metals from the water. I didn’t think this was possible using a chemical? Their advice was as follows:
Step 1: Place a clarifying gel block in skimmer (to attach to the metal particles once I re-dose to remove them off the walls again)
Step 2: Add another 270mls of sequester
Step 3: Run filter for 24 hours
Step 4: Change from filter to backwash and at the same time slowly pour 5 litres of acid into the skimmer to remove the metal from the filter and out through the backwash
Step 5: Recheck pH, it should not be affected but if it is then rebalance
Is this sound advice?
