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View Full Version : How much/which chemicals needed in newly filled pool?



Cold Drink
04-11-2008, 05:04 PM
I know this question has probably been asked a thousand times but doing a search on the forums didn't help me out.

I'm having my liner replaced on my IG 18x36 pool and I am wondering what I need to add to the water after it has been filled. I use bleach, so I assume I should shock it and add stabilizer but should I also add algaecide? Anything else I need to add?

Also, I plan on getting about 6000 gallons trucked in and fill the rest with the hose but its going to take a few days, should I add shock while it is being filled up? I won't be able to turn the pump on until its completely filled so I don't know if dumping in shock is going to help if the water isn't being turned over.

CarlD
04-12-2008, 12:21 AM
Actually, not quite as often as you think.

Don't add algaecide yet, and, if you do, only use polyquat.

I actually believe in adding chlorine while you are filling it.

Remember the rule of thumb:
1 gallon of 5.25% bleach adds 5.25ppm to 10,000 gallons of water. That's not a bad starting level for new water, which should be clean and not growing algae.

You WILL need to test your water ASAP. First: Adjust your pH. Get that right. Then worry about
chlorine,
total alkalinity and
CYA/Stabilizer levels in that order.

That's really all you need with a vinyl pool, at least for now. If you don't have a good test kit, get one. It should have the FAS-DPD chlorine test. Don't be confused and get a DPD chlorine test--not the same thing.

You can get the Taylor K-2006 kit, the Leslie's FAS-DPD Service Test Kit, or the Trouble-Free Pools test kit...all are pretty much the same. You cannot get the PoolSolutions PS-234 these days.

In a pinch, the Wal-Mart 5-way drop test kit will do (I think HTC makes it, but I could be wrong).

Bleach is good.
So is baking soda to raise T/A
Muriatic Acid to lower pH
Borax to raise pH
CYA must be purchased from a pool store.

"Shock" is a verb, not a noun. You can shock with Bleach or Liquid chlorine as well as anything.

Cold Drink
04-30-2008, 01:04 PM
Thanks for your help. I do have one of Ben's test kits and I've been using Bleach for a couple years now. I'll make sure to get the php adjusted before anything else.

Cold Drink
04-30-2008, 01:12 PM
One more thing, the guy that is going to replace the liner recommended I use Lithium Hypochlorite for chlorinating because its better for the liner and then bleach. I keep my CYA and chlorine low so I don't think using bleach should be wearing out the liner. Do you have any experience with Lithium Hypochlorite? Does it come with stabilizer like tri-chlor?

waterbear
05-01-2008, 12:55 AM
One more thing, the guy that is going to replace the liner recommended I use Lithium Hypochlorite for chlorinating because its better for the liner and then bleach. I keep my CYA and chlorine low so I don't think using bleach should be wearing out the liner. Do you have any experience with Lithium Hypochlorite? Does it come with stabilizer like tri-chlor?
lithium is unstabilid like beach. It's only advantage is that it's a fast dissolving granule instead of a fast dissolving liquid (well liquids don't dissolve but bleach does dissapate throughout the water very fast.)
The BIG downside to lithium is it's co$t. It is the MOST expensive form of chlorine you can buy!

aylad
05-01-2008, 05:25 AM
In addition to what Waterbear said, Lithiumis not as conveniently obtained as bleach, either....it requires going to the pool store!! :eek:

Bleach, if properly used, won't wear your liner out any faster than any other form of chlorine.

Janet

waterbear
05-01-2008, 12:19 PM
In addition to what Waterbear said, Lithiumis not as conveniently obtained as bleach, either....it requires going to the pool store!! :eek:


Hey, I work in one!!!!!!!!!!:);) Some of us are OK!

aylad
05-02-2008, 12:40 PM
Hey, I work in one!!!!!!!!!!:);) Some of us are OK!


I stand corrected...present company excluded! :D

Janet