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Keep an eye on CYA, it goes slowly down. Without CYA is not so good for cover and skin.

not sure which dichlor i need. For CYA add's i use the Pool Stabilizer from melpool. So i guess i'm somewher in the ball park if i add 0.3oz (9 gram) each month until the bright sun return's.

Will the reference liquid also work for CYA of 30? Could take it with me next time I'm in the states.

Triggered by a remark of chemgeek in post Foam that isn't? "By the way, don't forget to use Dichlor one day each month to help maintain the CYA level. You might test for the CYA level to be sure it's not too low. Chlorine slowly oxidizes CYA in hot tubs at the rate of roughly 5 ppm per month."...

As far as I know you add this one time only and via poolmath you would be able to calculate the exact amount needed (as far as I understood). So yes, bit of blind trust in tfp poolmath.

Boric acid can be purchased in the Netherlands. Google for "boorzuur prijs"

It took my spa 5 or 6 times cleaning with AWW-some before there was almost no junk left. So buy a lager 6oz cannister and prepare to take some time. Depending on size it simply takes time to drain (flush pump) run and refill. Now when i swap water i clean it twice. First time with the "old"...

old thread but i use a peristaltic (sort of stenner) pump to add basic chlorine need of the spa. Works fine and i'm free to go to holiday. When i come back i run a full test, usually it ends up with some Muriatic Acid to take PH down to 7.5

Just to jump in. I use the same 12,5% and with a perastaltic pump i add 50ml on daily base to establish a continue FC level 3-6. When using the spa i have to add 40ml per person/per hour to keep FC level. Boric acid (boorzuur) is available on internet also in the Netherlands. Used vd lange...

Thanks. I like the easy use of chlorine so I wil try to make it work with a chlorine pumo that adds a fixed amount of chlorine during filtering time. Additionally after each soak I just add some chlorine manually. Just need to figure out how to connect lead into return jet at bottom of spa...

Using bleach methode after ahh-some clean. Choosen for tf100 testkit. Instead of dichlore i added cya right after fill. For the rest i love it. Only side note is that i have to pay attention to fc level. Meaning i have to add chlorine every day to maintain correct fc level. Trying to solve that...

my 2 ct's. Get the speedstir. Makes testing so much easier

Re: What test kit to get for new Jacuzzi tub You where so right. Tested the 70/20 tabs last two days and they are no solution. They dissolve way to fast ending up with high FC level. Started at 5 at 9:00PM and measured next day at 9:00 AM a whopping 12.5 FC. So having in mind that my FC tends...

Ethernet option is cool. Control spa via your phone. Wish mine had the option

Hi. I'm pretty happy with my arctic spa. Looks great and works good. Nice massage jet's. In europe it is always delivered with the enhanced bottom wich does not need concreet foundation. Just an even bed of sand will do. Mine is standing on a bed of sand with 1 1/2 inch tiles on top. Depending...

Re: What test kit to get for new Jacuzzi tub Thanks for the clear explanation! I know what to do for the next soak.

Yep, that's it. Sample sizer. Makes live easier :)

Re: What test kit to get for new Jacuzzi tub Hm, could it be possible that a spa smels like that while having a fc of 4 or more continuesly and dissappear after 2 days of not using the spa? If so than that could be the chlorine smell my spouse is complaining about.

Perhaps stupid question but how does chloramine smell?

Like the speedstir very much. Likewise for the measuring guide

And yes I did add CYA manually with melpool cya to appr 30 ish

Perhaps my answer was to quick. Looking for a solution to add enough fc during vacation I purchased the pucks to have a way for the guy who is watching the home to add fc without him to have to handle lc every day. Did not knowabout the side effect AND did not have the oppurtunity to test the...

I'm using liquid chlorine and add 100mL every evening. That keeps level ok, even after 1 our soak with 2 person's. When we are away we use melpool 70/20 tabs, these are without stabilizer.

i'm using the TF-100 for my tub, no problem. I Always take a large smaple and by the time i get into the kitchen it has cooled down. for maintenance i follow http://www.troublefreepool.com/threads/9670-How-do-I-use-Chlorine-in-my-Spa-(or-pool) which has different goal values. After soak ore once...

If you know the watts it would be easy. Assuming heater is 3200W and pomp would be 1000W on speed 1 you would need 4200/220 = 19A generator to make sure that filtering and heating is continued during power outage.

I'll keep an eye on the fc loss and with next water change I will also use an aquafinesse cleaning puck. Hoping for good weather. Thanks for input!

alright, think chem-geek was right. Did a soak and add chlorine on Friday evening. Measured fc on saturday and adjustedn no soak. sunday evening fc test and added chlorine. 1 hour later i tested and got on 10ppm. tonight (monday) i tested again and got 5ppm. No soak's since Friday evening. So it...

O, and the measuring was in both cases right before soak

Chem geek, you are mention something. My observation is indeed no 48h period. The 6 to 7 ppm usage is stabil but always with a 2p soak for about 1h. Need some time to perform the mentioned 48h test. Will report back. Btw I'm sure the tub had some biofilm buildup before clean. I could pour in...

Oi, forgot to mention it is a 2007 model and I doubt if the ozonator has been exchanged. I don't smell any ozon when openening the cover and I read on the internet that the life span is approximately 5 years max. As far as I could trace thw default filtration setting for this model year is 2x...