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New Hot Tub Owner Slowly Figuring It Out?

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Sam:
Yeah, nitro has some fantastic posts that all newbies should read.  Someone should make them stickied.

vincecarter55:

--- Quote from: bachman on January 04, 2019, 04:59:57 am ---Vince,

Just kind of skimming along here and I'm very new to all this as well. I've had my 400 gallon tub set up and going about 9 weeks and using bromine also as we took over the chems from the orig owner.
As I had read, building up the bromine bank can take a bit but I have had a few ups and downs with the level (my own doing and experiementing with settngs), yet it seems pretty easy / non critical. Other reading; Min 2 ppm, recommended range of 3 to 5 and max of 10 ppm.
As first set up, I wasn't sure why the other owner had a floater and the spa frog that is build in /in-line so I probably doused the tub with more tabs than needed but it work out fine as I tested and keept track of the level and did have the floater in there. The shock additive (as needed per bather load) "wakes it up" as well.

One thing I found along my path of gaining info or making a file and printing up stuff I don't want to try committing to memory just yet is a write up of tips and simple realtionship of the chemistry by "Nitro" and another as ref by him - "Hottub Hillbilly" or something like that. Both seem to be vauled and respected resources and clarify some things while creating a tip list that really hones in on the basics. Keep an eye out for them on a search and I will add that Nitro does ref another link as for specifics on bromine whereas he covers chlorine. I think Hillbilly does the write up to zero in on bromine. It really filled a void for me as I'm always looking for the simple of how-to's or explanations and his list is good for the examples of-  if this, do that and making sure the one or two key levels are good before trying to hit the other targets.


2005 Marquis Reward S.A. / 240v w spa frog mineral/bromine @102*f

--- End quote ---

Awesome. Thanks for the tips. I've been trying to absorb as much knowledge as I can from this forum but I've barely scratched the surface.

bachman:
Here is a link to pool spa fourm below and the related info (Nitro's write up) I copied to keep around for ref.
Also note, within the text is the link related to hillbilly and his write up on bromine.  8)

https://www.poolspaforum.com/forum/index.php?/topic/13634-nitros-approach-to-water-maintaince/&tab=comments#comment-64510

I've perused troublefreepool and used the pool math calulator that helped with dosage info as I'm still learning and wanting back up confirmation on what I THINK I know.  :-[

hottubdan:
Most likely your latest bromine levels are not accurate. You/they are testing for halogen levels and having to interpret.  You have not used up your chlorine yet.  Hydrogen peroxide will bring chlorine level down.

bachman:
I'll add two more things here that might be helpful, both from troublefreepool topics.

This below touches on bromine testing in an alternate way that might be helpful or as a double check method -
"One way to check is to shock with MPS (NOT chlorine) then test for FC with DPD and multiply the results by 2 to get bromine levels.
 If your bromine is at shock level ( above 10 ppm) then you have enough of a bromide reserve in the water. IF the bromine level doesn't rise much then you don't have enough of a bromide reserve."

Next is a link to a 'sticky' on a bromine spa written by waterbear who is also a trusted source from what I read.

https://www.troublefreepool.com/threads/84-How-do-I-use-Bromine-in-my-spa-(or-pool)

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