RADMO

I tried the bucket shock with chlorine and the water shocked up just fine, reading 25ppm, it is now at around 5.2 (i left it out in the sun) but it has very little to no CC. Meanwhile, I hauled our pool water off to the local Leslies, showed him the SWG printout from POOLSCHOOL and basically they had no choice but then to agree with the POOLSCHOOL - they tested my water and said it was in near "perfect" condition. If all customers used this forum to correct their pool water - then brought pool water in that clean - they would be out of biz! They showed my FC and TC to be at 3.1 My PH at 7.6 and AKL at 100 with CYA at 50 (instead of my upper 60 reading) and CH at 250 (instead of my 233 reading) - i am going to call LaMotte on Monday to see if they have some tricks to their test kits.... Meanwhile, Leslies suggestion, a cup of Muriatic acid overnight and enjoy the pool! Thanks again to everyone for your help this round.. I am sure my pool (aka wicked stepchild) will have a need to return to this forum in the near distant future. Allbest, Linda

I ran the SWG last night and now Testing water this morning, our CC is lowering , we are at FC=357 and TC=379 and I am wondering if it isnt in fact the by-product of the Calcium Chloride that caused false readings of the CC. Our CH is now at 279 and we have not added any more Calcium Chloride since Monday, yet the CH reading is creeping up each day while the Combined Chlorine reading is creeping down... However, I did notice the PH is up from 7.5 to around 7.8 - perhaps a splash of muriatic acid is due? I sware, i told my husband even though our kids are now grown teens, getting a house with a pool is like having 3 new toddlers here all over again! Linda

woohoo ChemGeek - much apreciated, we are using the LaMotte Color Q pro 11 (tablet system pretty straight forward use) and the guy at La Motte said to use MPS Out” reagent 6910-E to nutrilize the MPS we shocked with last week (we are awaiting delivery) but the Calcium Chloride nutrilizer I am still waiting to hear back from them (we added several pounds of that last week to raise our CH) - La Motte is closed today for good friday so i will have to check with him again on Monday. I am going to try the bucket test for the CC and also haul the water off to pool store for double-dog test comparisons. Thanks again!! Linda

I'm wondering if some of your problems couldn't be caused by testing error? Hi guys, back at the pool again this morning. I did NOT run the filter last night, and of course I have had the salt chlorinator off now for 3 days. Today here is our readings. (did i mention the water is sparkling clean?) 20,000 gallon (10ft in deep end) and raised spa rocked in with spillover to kidney shaped outdoor pool in southern calif. White Fibregel coat over plaster. Jandy aqaulink PDA with 400btu Maxitherm heater, inteliflo pump Free Chlorine: 2.86 Total Chlorine: 3.57 Combined Chlorine: .71 PH: 7.6 ALK: 103 CYA: 67 CH: 210 Copper: 0.1 Iron: 0.0 Phosphates: 120 Salt: 3400 Temp: 66 What is the highest chlorine level we can have and still use the spa. I am wondering how many days it will be without use while we await the shock level to drop from 28ppm back down to 2.5ppm. How does one go about reducing the chlorine once it is up that high? No doubt we should leave the chlorinator OFF during that process? The fibregel company says our CH should be 300-350 , perhaps we can use a CALHYPO shock and get our chlorine shocked and calcium raised at the same time? Thanks again for all your help! Linda

Our chlorine dropped another .03ppm today. When you shock the chlorine to 28ppm and the pool only loses .03ppm a day, does it take 100+ days to rid the pool of the 28ppm liquid chlorine? Just doesnt make sense how you can shock to 28ppm - what do you use to lower it back down to safe swimming range?? Just waiting for it to lower will take months on end, at the rate our pool loses chlorine.

How is that? Nitrates are a nutrient for algae and bacteria, just as with phosphates. How do higher nitrate levels affect chloramines? I don't see the chemistry in that except that continued chlorination that oxidizes ammonia and organics does produce some nitrate as a by-product. Thanks folks!! - we have tested our phosphates, but is there a seperate test for nitrates? I just finished testing the pool water this morning after the MPS had a chance to settle - we have NOT had the chlorinator on, despite the mysterious increase in chlorine; here are this mornings current readings: Free Chlorine: 3.62 Total Chlorine: 5.53 Combined Chlorine: 1.91 PH: 7.5 ALK: 103 CYA: 73 CH: 233 Copper: 0.1 Iron: 0.0 Phosphates: 120 Salt: 3400 Temp: 66 Sorry to be such a pest.. but I think I may be missing a piece of the puzzle here. For the most part, I have been trying to keep the FC and TC close to the same number (between 2.0ppm and 3.0ppm) now that the TC was up to 5.87ppm after MPS shock, it took 2 days to lower to 5.53ppm. I told my husband I want to raise the TC to 28.0ppm he saidd by his calculation we will not be down to 2.5ppm until around July?? Ok, he is telling me to hire another pool guy, I told him the pool guy never measured the water, just flirted alot - ok, no to the pool guy... but no to the 9 gallons of chlorine either.. any other suggestions here , I sure need help!

How is that? Nitrates are a nutrient for algae and bacteria, just as with phosphates. How do higher nitrate levels affect chloramines? I don't see the chemistry in that except that continued chlorination that oxidizes ammonia and organics does produce some nitrate as a by-product. Thanks folks!! - we have tested our phosphates, but is there a seperate test for nitrates? I just finished testing the pool water this morning after the MPS had a chance to settle - we have NOT had the chlorinator on, despite the mysterious increase in chlorine; here are this mornings current readings: Free Chlorine: 3.62 Total Chlorine: 5.53 Combined Chlorine: 1.91 PH: 7.5 ALK: 103 CYA: 73 CH: 233 Copper: 0.1 Iron: 0.0 Phosphates: 120 Salt: 3400 Temp: 66

Thank you for replying. We purchased the LaMotte Qpro11 with the tablets. That is how we are getting our readings. Hope that is accurate. Sorry to be such a novice, we are trying to learn our pool but is much more complicated than we ever expected. We had to fire the pool guy for multiple no shows. We are confused that MPS is reading as chlorine, perhaps they make a tablet to remove that as well? We have never performed a liquid chlorine shock,Is this ok for the fibregel coated pools? What should the Total Chlorine read? How much do you think it will take for a 20,000 gallon pool? Will we need to re-add more conditioner to bring our CYA level back up to 60 again after we use the liquid chlorine? Should we turn the aquapure chlorine generator off while we are shocking the pool using liquid chlorine? Thanks again for all your help here..

Hello, can you please help us figure out why we cannot eliminate our chlorimines. We have a 20,000 gallon saltwater pool with aquapure 1400 SWG and fibergel coated surface. The guy at Leslies pools recommended a non-chlorine shock with Fresh & Clear, and not to use a chlorine based shock in our salt pool, he said since we had plenty free chlorine. Note: prior to our potassium monopersulfate shock this morning, last week we did add 10lbs of Calcium Chloride to raise the CH - I believe it was low from rain water and the fact we do not have plaster and do not use calcium based chlorine, our surface manufacture recommends the CH to be at around 300 range. We turned our SWG off today and our reading BEFORE we shocked the pool today with 4lb bags of Fresh & Clear was: Free Chlorine: 2.2 Total Chlorine: 3.4 Combined Chlorine: 1.2 PH: 7.5 ALK: 105 CYA: 67 CH: 220 Copper: 0.1 Iron: 0.0 Phosphates: 120 Salt: 3400 Temp: 70 Our reading AFTER we shocked the pool today is: Free Chlorine: 3.88 Total Chlorine: 5.87 Combined Chlorine: 1.99 PH: 7.9 ALK: 98 CYA: 65 CH: 221 Copper: 0.1 Iron: 0.0 Phosphates: 120 Salt: 3400 Temp: 69