Also known as “Water Mold”.
Water mold is caused by a contaminated garden hose. It generally happens when a hose with residual water is left out in the sun. The process listed below may have to be repeated in severe cases.
Water Mold Decontamination Process:
1 – Put 1 tsp. of chlorine granules down the faucet end of garden hose, shut off other end, connect back to faucet and fill with water, let stand (20) minutes, then flush out.
2- Remove filter(s), soak in a (5) gallon bucket with 2-tsp of Sodium Dichlor(Granular Spa Chlorine). After soaking 2-3 hours rinse thoroughly. It is highly suggested to buy new filter. You will leave filter(s) out during this process.
3 – Add 2.5 oz of Sodium Dichor to your hot tub for every 100 gallons of water. Turn on the jets and aerator and run for (30) minutes. Then turn both off and on every (5) minutes 4-5 times during the next hour.
4 – After (8) hours, test for proper chlorine level, which should be 5-10 ppm on test strip.
5 – Drain the spa and back-flush by filling the foot-well with the garden hose in the filter area, then drain this water out as well.
6 – Put in clean or new filter(s) and fill the spa.
Water-Mold Decontamination Process:
1 – Remove filter(s), soak in a (5) gallon bucket with 2-tsp of Sodium Dichlor(Granular Spa Chlorine). After soaking 2-3 hours rinse thoroughly. It is highly suggested to buy new filter. You will leave filter(s) out during this process.
2 – Add 2.5 oz of Sodium Dichor for every 100 gallons of water.
3 – Turn on the jets and aerator and run for (30) minutes. Then turn both off and on every (5) minutes 4-5 times during the next hour.
4 – After (8) hours, test for proper chlorine level, which should be
5-10 on test strip (purple).
5 – Drain the spa and back-flush by filling the foot-well with the garden hose in the filter area, then drain this water out as well.
6 – Put in clean or new filter(s) and fill the spa.
P.s. Water-Mold could be coming from your garden hose. Put 1tsp of chloring granules down the faucet end of garden hose, shut off other end, connect back to faucet and fill with water, let stand (20) minutes, then flush out.