TA turned Red

[treyragno]

Your chlorine additions can give you an idea but liquid Chlorine degrades in potency so using acid/ph to gauge results generally has less variables. Also, the tub consumes fc around the clock so if you want to verify your dose do it 10 -15 minutes or so afterwards - not tomorrow.

Is much FC used when the cover is on? I know UV consumes FC and I was under impression of a cover on hot tub is used, the dissipation rate is very slow.

 

[mgtfp]

I have a feeling your actual volume may be less than you think. A smidge off in a big pool isn’t a big deal but in a spa 50 gallons is a large percentage of the volume. For instance, my mfg. listed spa volume is 250 gal. For dosing & poolmath I use 200 gallons & it’s always right on the $$ with my results.

I don't have a spa, and was always wondering how you guys with spas measure those minute amounts of acid? Do you use teaspoon measures?

 

[Mdragger88]

Is much FC used when the cover is on? I know UV consumes FC and I was under impression of a cover on hot tub is used, the dissipation rate is very slow.

Its basically a bathtub used by multiple people In which you continuously use the same water- there is always a standby fc demand. This is why if your fc falls below minimum for even a short time things can go south fast. Uv isn’t your enemy in a covered tub- nasties are.

 

[Mdragger88]

I don't have a spa, and was always wondering how you guys with spas measure those minute amounts of acid? Do you use teaspoon measures?

I have a little plastic Adjustable measuring spoon. It measures 1/2 tsp -1 tbsp

 

[Texas Splash]

It's good you are out of the (low) danger zone. The pH and TA will settle down soon. Good work.

 

[treyragno]

I have a little plastic Adjustable measuring spoon. It measures 1/2 tsp -1 tbsp
View attachment 456051

I need this. If my wife finds out I’m using her kitchen measuring spoons, she will kill me.

I need an adjustable measuring cup too

 

[mgtfp]

If my wife finds out I’m using her kitchen measuring spoons, she will kill me.

What is she going to do when she finds out that you are storing your test kit in the pantry?

 

[treyragno]

What is she going to do when she finds out that you are storing your test kit in the pantry?

She found it and moved it to the laundry room.

 

[Mdragger88]

Pro tip*
in a pinch steal the baking soda from the fridge/pantry- she’ll really love that (or maybe think you’re crazy)

The first time I came in the house rifling through the laundry area to get some borax & started putting it in the pool my husband thought I had lost my mind. He still probably thinks me & “my internet friends” are crazy. When people ask about the pool/hot tub , he tells them “I don’t really know much about it, she just pours bleach in there cuz she read it on the internet or something but it always looks nice ”