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Hey guys, We have a 395 gallon master spa lsx850 purchased 4 years ago. We use liquid chlorine to hold around 4-5 ppm with SLAM once per week and TA around 50. Six months ago we started getting a black slime building up around our jets (pics attached). I've drained the hot tub and treated the...

Hey guys, If there are any members here who work for a commercial pool care company I'd love if you could weigh in. We have a 60k gallon (2k square feet surface area) gunite pool in Southeast Michigan that is open from late May until mid September. It's a community pool in a complex with 300...

Hey all, I spend most of my time on the spa side of the forum but am putting together a proposal to add a new heater to our 60000 gallon gunite community pool in southeast Michigan. Our current heater can only get it to 82 and we are looking for more like 85 or so.. Those in opposition are...

Hey guys, We have a 60k gallon gunite community pool in our subdivision in Southeast Michigan and I'm trying to put a proposal together to get our current heater replaced (can only get the pool up to 82 and we are looking more for 84-85). We'd like to have it open mid-May to mid-September...

Hey guys, I've gone through the forums here extensively and am still having issues with higher than expected chlorine consumption and pH rise. We have a 395 gallon Master Spa LSX 850 with a circ pump and ozonator. The ozonator is deactived currently in an attempt to stop the pH creep from the...

Hey all, I'm now thoroughly on my way with the dichlor and bleach method and loving it. Can anyone comment on what impact the Master Spa "EcoPur" charged mineral filtration stick (copper and zinc) has on FC levels? How about the ozonator? The reason I ask is that this spa is as clean as can be...

Hey all, Learning a ton here. Love it. Still seeming to find conflicting information regarding MPS and it's ability to impact CC (apart from it potentially interfering with test results). I saw this quote on a previous thread on the same topic, " Use a combination of MPS and chlorine in the...

Hey all, First post here. Glad to find the group and I appreciate advice you all have. I'm writing from Lake Orion, MI. I've got a background in chemistry and lab work and I'm still finding myself having issues applying a lot of the vague information available online when it comes to the...