Nitro Posted December 12, 2009 Report Share Posted December 12, 2009 Here is a quick reference to using the Dichlor/Bleach method. (i.e. Chlorine) Please see the full guide for a detailed explanation. Top link below. Initial Startup Procedure 1. Balance water by lowering TA to ~80 ppm. See link below (Lowering TA) 2. Aerate until pH is consistently 7.4-7.8. Lower TA if pH rises above 7.8. Raise TA if pH stays below 7.4. 3. Test Calcium, and make note of it. (100-150 ppm) is ok. 4. Add 50ppm Borates (highly recommended) 5. Shock tub to 10 ppm FC using Dichlor the first night after filling. 6. Wait 24 hours and test FC again in order to calculate Chlorine Demand. (See link below) 7. Start using tub. 8. Continue to use Dichlor after soaks (approx 7 ppm FC per person per hour) (or 3.5 tsp) 9. After you have added ~34 ppm FC (~30 ppm CYA) using Dichlor, switch to Clorox 6% unscented bleach. Takes about a week or so. Ongoing Maintenance After the initial startup procedure above, you'll basically do the following: Check FC every day or two (and before soaks). Check CD as needed (once a week to start). Add plenty of Chlorine after soaks (and as needed) so FC NEVER drops to zero, and CD stays low. Add MPS before/during high bather loads to help out the Chlorine, and keep CD low. (Optional but recommended) Check pH once a week, and adjust TA as needed. Rinse filter every week or two, depending on use. Check CYA every 3 months, and raise by using Dichor if needed. CYA will drop slowly over time. Use Sea Klear (clarifier) if you experience foam, or cloudy water. Water Change After 6 months, change water and start over. If this is a new tub change water after the first month, then continue bi-yearly. Consider using a Spa Flush to clean out pipes before draining 1-2 times a year. Clean filter with TSP every water change. Lastly, if you let the FC drop to zero for any length of time, the tub is prior owned or you're having serious medical issues (i.e. rashes etc.), consider doing a Decontamination. (see below) Happy tubbing! 1 Quote Link to comment Share on other sites More sharing options...
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