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I’ve read that alkalinity and pH should not change that much and only need to be tested weekly. That’s not true of mine -it can be fine & I can go in alone for a half an hour and the next morning when I test, it’s WAY low. I use a drop test kit. Is there something wrong this indicates? Can...

When a heater in a hot tub goes out, my repair guy said it doesn’t sputter -it dies and it trips the circuit. I got up to our hot tub at our vacation rental last week and it was 68°. We thought a guest may have fiddled with it, and put it into economy or sleep mode but once we turned the...

Can someone figure this out for me? The hot tub in our vacation rental had no use for 2 weeks ( place was empty) . When I got here today , the Frog chlorine cartridge was empty , yet the reading was very high- 10 ppm. Nothing had been added in 2 weeks- no shock.

I use Spa Up ( baking soda) and Spa Down in my 375 gallon chlorine spa ( Frog cartridge). I’ve been having two problems. Sometimes I have high pH (8) and low alkalinity (below 40). I would use Spa Up to get Alk higher than I wanted , then use Spa Down which dropped both , but dropped pH more...

When you do a jet clean, is it always that yellow gunk that comes out , like it does when I use Ahh-some? I have cleaned off that yellow at the water line a few times . Was that a sign it needed to be drained? I’ve read about wiping the shell with a cleaner before refilling. Is that really...

What should be used for deep cleaning a filter? I’ve been using TSP.

When it’s said that chlorine should be around 3 ppm , I’m assuming that’s the free chlorine? We just switched from bromine to chlorine so I’m getting used to this . The cleaner at our vacation rental usually does it ( she’s certified) but when I came this time and checked it, FC was 5, CC 18...

For those of you with a saltwater spa , do you think it would be good for use in a vacation rental? I read - “No measuring chemicals, no guess work – just set the chlorine levels based on your usage needs with the touch of a button. “ The thing is, our usage needs vary so much . Sometimes...

A hot tub salesperson told me this & I wanted to see if others could verify it. In a chlorine spa, if you shock with MPS you can get a false high chlorine reading for 2 days. Correct? TIA!

I don’t understand something and am hoping someone can explain it to me. If I use a floater with bromine tablets I supposedly can shock with chlorine ( Dichlor) or non- chlorine ( MPS). And I need to add a sodium bromide packet on a refill to build up a bromide bank. But with the Frog system...

I can’t find my post from last week when I said my spa only heated up 2-3 degrees an hour and was told it shouldn’t take that long. It was suggested I post photos to see if it was wired correctly. So here they are. We used a certified electrician.

We are thinking of switching from bromine to chlorine in our hot tub in a rental. Will we always have to worry about/measure CYA or does it depend on what is used? If I am not ready to start using bleach, are chlorine tablets okay, or granules in a cartridge? The person at the store told me...

Curious if anyone has used a pHin monitor?

I have gotten so much help from these forums and now I have some more questions. Before giving up on the Frog Serene(bromine) System (we've used it for 9 months) and going back to the less expensive floater-plus maybe leaving shock for the guests to put in at our vacation rental, I called...

Are there problems with using a chlorine/ bromine neutralizer like Thio-Trine? Seems I’ve read something about that in the past.

I think I’ve been doing this incorrectly. We have been using MPS non chlorine shock when the bromine has been zero . But just enough to get the level to 1-2 ppm, so about a Tbsp. If the bromine reading is in the appropriate range of 1-2, do I still need to shock weekly AND with the amount...

Can anyone tell me about the Frog system using a mineral (silver ion) cartridge and a bromine cartridge? One came with our spa and we never used it . We use a bromine floater with tabs instead. What is the advantage ? The Frog system is more costly but if it works better to keep consistent...

Another hot tub owner recommended pH Balancer to me -you add the entire bottle on a refill and he said it kept it balanced a long time, till the next refill. In a Leisure Time product called pH Balance, the ingredients are dipotassium phosphate and monosodium phosphate. Has anyone used this &...

If I had to choose , what’s more important in a hot tub -pH or alkalinity ? I know they’re both important for the health of your plumbing and for your skin and for bacterial growth in the tub , but I’m always having a problem with this. I’ve learned to be OK with alkalinity at 40 because I...

I just found out about this and wonder how they are- Introducing CoolZone™ A Highly Efficient And Innovative Solution That Can Heat Or Cool The Water In Your Spa. With A Range Of Between 60 To 104 Degrees Fahrenheit. The CoolZone™ Option Is Professionally Installed And Easily Controlled Through...

I expected shock ( Dichlor or MPS) would clear up cloudy water in maybe an hour or two but seems it’s more like days than hours? Would it help to run the filtration system longer?

Does this indicate something is wrong if my alkalinity was at 30 and six tablespoons of Spa Up/ baking soda only brought it to 40 ? The directions say to start with 2 tablespoons which I did. I’ve always had problems getting the alkalinity up so I usually settle for 40 to 50 but I don’t think...

Is it only for the sanitizer that you have to leave the hot tub open for 10 to 20 minutes after?

What would happen if there was no bromide bank- if bromide wasn’t put in on a fill? Would you not be able to shock it to an adequate level?

We’ve been having problems with the hot tub in our vacation rental lately . It's almost 4 yrs old and this has never happened previously. The last 3 refills were only 2, 3 and 4 weeks apart . I don’t service it- we have someone else. I’m wondering what could be causing this. She says it needs...

When you’ve balanced your hot tub and the water is still a little cloudy - not bad, just not crystal clear- do you change the water , even though it’s only been a month and the TDS reads about 700? Or is there something else I can do first?

I have a bromine spa. Why is it necessary to use both chlorine shock (Dichlor) and non-chlorine shock (MPS)? Or isn't it? I usually add a little of both. From what I understand , MPS is a better oxidiser but it is not a sanitizer-won't kill bacteria. However, it acts to reactivate the bromide...

What are the guidelines as far as knowing when to use clarifier and what are the consequences if overused? TIA!

I know it’s important to check sanitizer daily or before/ after use, but can alkalinity and pH be checked just weekly?

Does anyone know why pH creeps up with no use of a spa? I balanced one day and didn't use it and the next day, the pH was 7.2, when I had left it at 7.8. I'd left ALK at 40 and it had dropped to 30.