Yes, measure the spa, too. You'll need both pool and spa volume added together; they are connected and share the same water.
Foreclosure Swamp
- Thread starter bmalouf
- Start date
I've been very busy the past week or so and have not had much time at all to do measurements and a lot of extra things to my pool. But trying to get a list of pool things done this week. I put in an intellibrite spa and pool lite today. When I did the spa I drained it and snapped a few pics of the stains. I still haven't got around to performing the few test to identify the stain. But here's some better close up pics for you to see.
What do your current test numbers look like? Since you had high CH at one point the mottling may be scale. Does it feel rough to the touch? You can manage the scale by keeping the CH at 250, pH around 7.2 and the TA around 70.
You may also acid wash to get rid of the scale, but it can shorten the life of the plaster.
You may also acid wash to get rid of the scale, but it can shorten the life of the plaster.
And a few Iron spots too. It looks like something was left laying where those are. Hard to say, but it looks like it. Still though, I wouldn't let it ruing my day, that is one nice pool setup. Love it.
Ok have some exact measurments.
Widths
30' long
15' wide on either end
14' wide in center
Depths
8' deep end
6' center
4' shallow end
Steps are 7' long
Spa 8' wide by 3.5' deep. Seat is 16" wide at 2' deep(from waterline)
Water test
Ph 7.2
Cya 90
2 FC
Cc .5
TA 50
Ch 320
Widths
30' long
15' wide on either end
14' wide in center
Depths
8' deep end
6' center
4' shallow end
Steps are 7' long
Spa 8' wide by 3.5' deep. Seat is 16" wide at 2' deep(from waterline)
Water test
Ph 7.2
Cya 90
2 FC
Cc .5
TA 50
Ch 320
Get ye some more chlorine in there! With CYA of 90, you should be holding an FC >5.
Making a couple assumptions about the floor profile and lost volume for the steps and seats the numbers for your volume come out to 25991 gallons.
oops, check that, I forgot to divide the ends by 2. 
Volume comes out to 18060 gallons. My pool is similar widths and depths but 43' long and is 25000 gallons so right after I sent I thought that can't be right.
Volume comes out to 18060 gallons. My pool is similar widths and depths but 43' long and is 25000 gallons so right after I sent I thought that can't be right.Great, thanks for the calculations. And yes as soon as I tested and saw the low numbers I went to pool calc and got my calculations for the bleach and added it. One question I do have is it seems like I am having to add a lot of bleach all the time? In the past few weeks due to high temps here in Texas I have been having to add a lot of water lately due to evaporation. So I'm assuming its partly that and the heat eating up the chlorine?
bmalouf said:
Organics and the sun eat up your chlorine. Loss to the sun is a percentage of the chlorine level. So with a CYA of 90 you need a higher FC level and lose more in absolute terms to the sun. I'm pretty sure I got that right. :-D
It would help if you could lower your CYA with a partial water change. That's going to give you problems long term.
Yes, but water dilution and heat add up to chlorine loss in the summer as well. Chlorine is a consumable and has to be replenished. More often if you have high bather load too. Just remember, don't add anything else with CYA in it, and if you don't have a salt generator, I would bring that CYA down to 40-50 with drain and refill. CYA 90 requires a high FC level as already stated.