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Hello, My recent 320 gal hot tub refill of city water was: 46F, pH 8.0, TA 50 & CH 50 out of the tap. After balancing, the hot tub water is: 100F, 4ppm Br, pH 7.8, Borate 60-80, TA 50 & CH 150. The water looks and feels clean. I have no issues with foam or any kind of build up. Nitro...

Hello, I recently used Ahh-Some, flushed and refilled my hot tub. City water to start: TA 50ppm CA 50ppm pH 7.8 I build a bromide bank to 30ppm with liquid sodium bromide and use a floater with BCDMH pucks to sanitize. After one month: TA 50ppm B 30-50ppm - Gentle Spa (it is hard tell...

Hello, From the TFP forum I now maintain my hot tub as follows. Purge the hot tub: Ahh-Some Balance the water: 7.5 pH, 50ppm TA, 50ppm Borate & 130ppm CH Sanitize the water: 30ppm Sodiium Bromide and add floater set to 1/2 with 3 BCDMH pucks for 3-5ppm Bromine target. (the floater allows...

315 gal hot tub Tested with Taylor K-1004 test kit. pH 7.4 TA 60 ppm CH 150 ppm Borate 40 ppm (based on the Gentle Spa label recommended amount) Sodium Bromide 30ppm (based on the label's recommended amount) I added 2 oz sodium hypochlorite (10%) around 3:00pm. Evening test strips showed both...

City tap water - pH 7.7, TA 50ppm, CH 50 ppm. After balancing - pH 7.5. TA 60ppm, CH 160ppm. I removed several pails of water and relaced with tap water to lower the CH below 150 ppm. Added Gentle Spa (4 oz per 150 gal) to get 40 ppm. Added (125ml per 1000L) sodium bromide to get 30 ppm...

How much Gentle Spa to get 30 ppm? How much Gentle Spa to get 50 ppm? I was told by Proteam 4 oz by weight per 150 Gal = about 40ppm. It is easier to measure fuild amount when adjusting for another fluid amount such as gallons. Proteam also said you cannot overdose Gentle Spa. My TA is 70...

To establish a bromine bank in a hot tub, which is better sodium bromide in the liquid or powder form? Or does it matter as long as 30 ppm is reached? Thank you.

I just want to check that I am using the Pool Math calculator corrrectly. New 315 US Gal hot tub. Sanitizing with Bromine to allow for not testing the water every day due to holidays and those extremely cold days when we don't venture outdoors. Usage will be two people, shower before each use...

Hi Chem Geek, Below is an excerpt from another site. I suspect your reply was in the context of a swimming pool. I do not know if the same discussion applies to a spa. I have hightlighted your comments in red below. My questions are for a spa. QUESTION 1: Will shocking a BCDMH, bromine...

Will adding borates, borax or Gentle Spa to a hot tub sanitized with bromine in the form BCDMH, create Bromates in the water?

Excerpt from "How do I use Bromine in my spa?" Here is a step by step: 1) On each fill balance the water (adjust TA and pH. Add calcium if below 125 for acrylic spas or below 200 for plaster.) If you have metals in your water add a metal sequesterant. Calcium: Is the target 125 ppm? (APSP...

This is a request for Molson or another senior user to update the "How do I use Bromine in my spa?" thread. Are the Dichlor/Bleach methods to balance the water applicable to bromine? Will a TA between 50/60 ppm (minimum set by the APSP) & 80 ppm offset with Borates (boric acid or borax/MA or...