RE-balancing help

Jump to latest Follow Reply
D

Docpatel

Well-known member
Oct 25, 2020
45
Denton, TX
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
Hi team of experts,
I would like to rebalance my cyanuric acid from approximately 90 to 100 back down to about 40 to 50 maybe even 30.

My issue is that the pool is three months new...and I remember reading somewhere that you should not empty the pool at all in the first year. I don't necessarily plan to empty the pool but approximately 50% of it in order to reduce the cyaniric acid by approximately 40-50% based on the calculators I've used online.

What I'd like to learn from the experts here is what is the best way of going about it, and given the hydrostatic pressure around the pool if I should even do it.

Should I be filling it at the same time I have a sump pump running while it's being filled? Should I simply drain and fill back ASAP? So many questions on best practices.

any advice appreciated.

TIA!!
 

Draining - Further Reading

www.troublefreepool.com www.troublefreepool.com

Where are you located? Do you have standing water, river, lake, etc nearby? Do you know if you have a shallow water table?

Your pool should not have that high of CYA that early in life unless someone added a lot of stabilizer. Whom was that?

An exchange is the safest method of replacing water, but it is difficult to achieve unless your water temperatures ( pool versus fill water) are quite different or if you have a saltwater pool.

Please complete your signature. What equipment you have and pool type really helps us help you.
 
Thank you! I definitely will add that signature I didn't even think about it before you're absolutely right.

I have a chlorine pool in north texas. It's a a country suburb on mostly flat land on about 1 acre. Pool about 8 feet from house.

I'm not sure if the area I live in is on a water table or not. We do live adjacent to aMain Street that has a water ditch run through alongside the street. No sewer system.

On the chemicals the company opened it this way. I've been using a Taylor test kit to do the measurements and seemed high to me too.
That said, it was opened as chlorine in October and they said they'll convert to salt in about feb/March. I'd like to get the cya fixed from all my readings well ahead of that so it's a smooth transition to salt.
Maybe I should cool it a bit but I don't want it converted with high CYA amd then I need a ton of chlorine constantly. I'd prefer little to no stabilizer and only chlorine...ideally.
 
If this will be a pool chlorinated using a SaltWater Chlorine Generator, you will want your CYA at 70 or 80 ppm anyway.

You get rain. Drain off a couple inches each time you get a storm coming your way. Let rain fill it back it up. By late March when your SWCG will operate, your CYA will be down to 80 or so.
 
Be sure you are ONLY using liquid chlorine at this time. I suspect the PB used lots of pucks.
 
Ohhhh....If that's the case maybe that's why they did it this way since it'll be winter with water temps ~40-50....where it's ok to not go crazy on the chlorine!

this is making a lot more sense. I've been crazy to get to my csi/Lsi near zero as much as possible. So far it's good but the cya had me concerned since I do t want to have like chlorine at like 7!!

thanks! Will hang tight and not drain.
 
Docpatel said:
So far it's good but the cya had me concerned since I do t want to have like chlorine at like 7!!
Click to expand...
Don’t worry about the FC number by itself. It’s all in relation to the CYA. Any target value on the FC/CYA chart @mknauss just linked has less active chlorine, and is therefore less harsh, than 1 ppm of FC with a CYA of zero is!

It’s safe to swim at any FC level up to the SLAM level of your CYA, and yes I have done that. I think the CYA was 40 at the time, and SLAM level is 16 for a CYA of 40. You couldn’t even tell there was chlorine in the pool! (Except with a test kit of course) There was no smell, no eye irritation.
 

Enjoying this content?

Support TFP with a donation.

Give Support
If you do decide to drain some of your pool, I just drained 1/3 of my pool and my CYA went from the 80's to the 30's. You could consider a smaller amount to drain. I drained with a submersible pump then added water, not a continuous exchange,( until bed time and I tried to add water flow from a hose about equal to water flow from the hose connected to the pump). When I woke up the water did go down a bit to exactly where I wanted it, so it was part draining, part exchange. I used the Superior pump, 1/4 horsepower with a 100 ft hose, and I was only getting 5 gpm pumping so be prepared it takes a while.
 
You must log in or register to reply here.
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Top Bottom
Back
Jump to latest Follow Reply