Original > Hot Tub Forum

Chlorine readings in new tub fill and start up chemistry

(1/3) > >>

Botswana:
In switching from bromine to chlorine today I did the following:

Used ahhh some jet purge
drained the tub
blew out all the jets and filter stand with leaf blower
put some water in (1/5 of the tub) and drained that (to dilute and push out any old water still in)
leaf blew everything out again
Dried everything with beach towels
Filled whole tub back up


In my start up balancing, im reading chlorine in the tub...more than just .5.  Is this just because municipal water has chlorine in it? For what its worth, that reading was with a test strip, not the drop kit (just didnt do it and now its raining).  I was pretty careful and did all the steps i could to get all the old stuff out.

Also, in my initial chemistry (after tub was  higher than 90 degrees) i read 40 for alkalinity with the drop kit.  I raised it to 90 using the calculator online and retested and confirm it was 90.  pH seems high, like 8.2 per my drop kit, but only 2 drops of the solution gets the pH down to like 7.2.  Seems weird.  The pink colors on the pH scale are all very similar.  The lower numbers on the scale are more distinct because they are yellow and orange.  Is it likely that the pH isnt quite as high as I am thinking if only 2 drops gets it firmly to 7.2?

I am using the
Poolmaster 22260 5-Way Test Kit with Case - Basic Collection

bud16415:
Yep that sounds about right for city water and chlorine. Mine is usually higher than that. I more or less try and start off a little high with the chlorine to kill anything left in the tub. It will come down quickly with heating the water back up.

Sounds like you might have had a misreading with the first ph.   

You will be going with the @ease so you will have to play with the settings to get it to match up with the usage at first. I haven’t used the @ease all that much but with the bromine canisters I felt they dispensed more when they were full and as they got used the rate went down. Just supplement for heavy bather load days with dichlor.   

Botswana:
This seems like a somewhat silly question, but I do still need to add some dichlor or mps after each soak, right? That's what I was doing with the bromine cartirdges

bud16415:
There are many ways to look at it. Being as how sanitation is tied to time but also tied to usage. You could set your inline feeder to maintain the tub assuming no usage and then hit it each time you use it based on how many people, how long, rinsed swimsuits or not, if you shower or not before, kids or adults etc. and dose based on the extra amount as you are at the tub anyway how hard is it to scoop out a tablespoon or so. If you use it exactly the same every day then you could set the feeder to take care of it all and just check it and adjust here and then.

For me it was more of the first case and I figured if I’m in it everyday why not just do it all manually.

Everyone is different. 

Botswana:
I'm now at like 7 teaspoons of bisulfate and pH still doesnt want to come down at all. Alkalinity was at 80 -90 when I started so I'm sure its fallen too. Aggravating

Navigation

[0] Message Index

[#] Next page