What do you use to measure/ add

timrf79

Active member
Jan 21, 2018
40
Houston, TX (area)
Pool Size
28000
Surface
Plaster
I may be overthinking this, but what do you use to measure up liquid bleach, muriatic acid, etc... and then add to the pool?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,345
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
In your volume pool, you really do not need to measure that precisely. Use a 1/4, 1/2, etc of the jug.

But if you insist on measuring, use plastic measuring tools. A 4 cup one is good. Should have one for acid and one for chlorine to be safe.
 
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Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,179
NY
+1. I had 35k gallons. The difference between a 3/4 eyeball of whatever jug/ bag and 7/8 was unnoticeable.
 

HermanTX

Gold Supporter
May 20, 2020
2,644
Katy TX
Pool Size
14600
Surface
Plaster
Chlorine
Liquid Chlorine
I found a plastic container that I marked off in 8, 16, 24 and 32 oz. I always add in those increments. I have 2 - one for acid and 1 for chlorine. It does require you to handle the acid twice but I find it better then trying to hold a gallon jug of acid over the pool to pour in.
You can find something similar at Home Depot in the paint department.
 

Homebrewale

Well-known member
Apr 21, 2020
627
Apex, NC
While it may not matter with chlorine, muriatic acid additions are less than 1/4 of a jug or similar measurements. Also when my measuring cup is dry, I use it for dry measurements like CYA. I put it on my home scale and weigh out the amount I need.
 
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Pmachang

Member
May 26, 2021
18
Richmond Hill, ON, Canada
Pool Size
13000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-9)
Not sure what type of shock you used but suggest go with liquid chlorine or cal-hypo (since you have a vinyl pool) to quickly raise your FC if needed. I would err on the high side of your target FC which for CYA of 70 is 5-10ppm so maybe go to the 8-10 range to rid yourself of any lingering algae.

In your volume pool, you really do not need to measure that precisely. Use a 1/4, 1/2, etc of the jug.

But if you insist on measuring, use plastic measuring tools. A 4 cup one is good. Should have one for acid and one for chlorine to be safe.
Is it okay to use a glass measuring cup instead of plastic?
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,345
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Is it okay to use a glass measuring cup instead of plastic?
It is strongly recommended that NO GLASS goes near a pool. If you break it and glass gets in the pool, the pool must be drained to get the glass out.
 

Pmachang

Member
May 26, 2021
18
Richmond Hill, ON, Canada
Pool Size
13000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-9)
Ah….I see.

I usually premix the chemicals inside first then bring it outside in a plastic container.

is it okay to do so inside or not recommended since dealing with chemicals?
 

Kevinr14

Silver Supporter
Mar 8, 2021
295
Chandler, AZ
Pool Size
15000
Surface
Plaster
Chlorine
Liquid Chlorine
I have a 2 cup plastic measuring cup for acid and a 1 gallon measured pitcher for chlorine. I know you don't have to be that precise with the acid but I have to be for my OCD to be satisfied.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,345
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Do realize the products you are adding are not that accurate in concentration.
 

DorsalSpine

Gold Supporter
Silver Supporter
Jul 8, 2013
863
Columbus, Ohio
I use my 1 quart measuring cup as a general guideline. The chlorine bottles are opaque so it's hard to eyeball the amount. I don't sweat it if I'm over or under a little.
 

Lilypad

Silver Supporter
Bronze Supporter
Nov 12, 2016
373
Plano, Texas
I also pour straight from the bottle....both chlorine and muriatic acid. I prefer not to transfer
chemicals to another container if at all possible. Only handle it once. Lower jug halfway
into the water, tip to pour, cap it, dunk to clean and done.

I'm not worried about slightly overshooting the FC. Since I "know" my pool’s appetite, I tend
to go slower on the MA and adjust as needed as I test. Usually right on the mark, which is totally
satisfying!
 
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