MnBdub1981

Master Spas recommends using a non-chlorine shock (oxidizer shock) as needed in their Water Care Guide if free chlorine is less than total chlorine. I have not had time to learn about the dichlor/bleach method yet but I will. After purchasing my tub I realized that if I ask 100 people how to maintain a hot tub, I will get 100 completely different answers. There are two Canadians that started a Youtube channel and website called Hot tub University that out of all the content out there I liked the best. They talk about oxidizing shock at the 27:12 min mark of this youtube video. I would love to know your thoughts on this video. Thanks

I apologize if this question has already been covered on this forum. I was just reading the label on the Leslie's FRESH N CLEAR SPA OXIDIZING SHOCK and it's 38% Potassium Peroxymonosulfate and 62% other ingredients. Does anyone else wonder or know what the other ingredients are or do I just need to learn to relax about these chemicals? Also, if there is a favorite Chlorine -Free Oxidizing Shock that is a good value out there, I would be interested in what some of you recommend. Thanks.

RDspaguy, I'm learning how to use this site and clicked on Reply instead of Quote so my response to you is below.

This ALK & pH relationship gets a little confusing. I agree completely on the test strips. I have a long way to go but getting the taylor test kit was a game changer. I emailed taylor and they recommended the k-1005 for me.

Thank you, I will read the threads by @waterbear I can definitely get my pH in range and alkalinity above 50. I did read that ALK will follow pH? I will put a note in my tub file to use ahhsome on my next fill. I did fill it, drain it and refill because I heard there could be some antifreeze in the lines. New to this site. What do you mean by sticky thread? Master Spas Twilight model 7.25, 305 gallon capacity. Its does have ozone and EcoPur Charge. Do you have an opinion on Spa Marvel? Glad I stumbled upon this Forum. Thanks

My first hot tub and at least at the moment I'm having some serious buyers remorse because I absolutely cannot balance the pH and Alkalinity and have literally spent days trying to do it. I'm using sodium bisulfate to lower the pH and Sodium Bicarbonate to raise the Alkalinity. Put in fresh filtered water and the pH was 8.5 and ALK was 98. Bumped the ALK up to 110 and then really took a long time to get the pH to 7.5. I was adding about 1/2 oz at a time and running the pumps for 30 min each time with cover open. I was relieved to finally get the pH to 7.5 and checked the ALK. The AlK was 70 and Master Spa recommends 100 - 120 ppm when using Dichlor so I bumped the ALK back up to 120 with Sodium Bicarbonate. Struggled again all day adding 1/2 oz pH down and waiting for it to mix and testing once in a while. At every test the ALK was dropping like a rock and the pH was hardly moving. Now my ALK is back down to 80 and my pH is still above 8. I "think" I completely understand how to do this but I must be doing something wrong or there is something wrong with the pH down chemical or something else? Has anyone else experienced this or am I possibly on Candid Camera?