Inline chlorinator and THANK YOU

odelay101

Gold Supporter
Jul 3, 2021
4
New York
Question below, but first, a huge thank you to the incredible community here at TFP. We bought a house with a pool last summer. We somehow managed to survive half a season using pucks, not knowing that we needed to backwash our DE filter, and without a test kit or working filter pressure gauge. A few weeks ago, I found this website trying to figure out why I was getting dust at the bottom of my pool. Dead algae of course!

Thanks to you all, I have now brought my chlorine up to the right level for our high CYA, found the hidden algae colonies inside our light fixture, properly cleared out our filter, and acquired the simple tools and chemicals I need to feel superior to the snake oil salesman down at the pool store. Still need to replace water to get our CYA down to a more reasonable level, but otherwise, our pool is near perfect thanks to you.

The pool school articles and old forum posts have answered the thousand questions I've had to date, but I now have one where I have found conflicting advice on the site: how do I set my Hayward canister inline chlorinator now that I will only be using it on vacations or if my CYA ever actually gets low? I've seen some recommendations to set it to zero and some recommendations to set it to full. Intuitively, full seems better to avoid stagnant water in the canister, but I don't totally know how the circulation works through that piece of the plumbing. And in either case, do I need to do anything with the puck dregs and highly chlorinated water that are still in there?


Thank you!
 

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2014
33,822
Texas, San Antonio/Marion, South-Central Area
Pool Size
17888
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
Welcome to TFP! :wave:

full
 

Lilypad

Silver Supporter
Bronze Supporter
Nov 12, 2016
375
Plano, Texas
I have the Pentair Rainbow 320 that most pool owners have been "gifted" as part of their pool
build. I leave mine fully open and empty of tabs unless, as mentioned, it's vacation time. It sits in
the sun for a good part of the day so I like to have water moving through it. It'd clear out the dregs
you mentioned the easy way. Someone who has a Hayward will hopefully come by and give you a
more precise answer!

Sounds like you’re doing well managing your pool. Congrats! Do us a favor and fill out your
signature (see mine below & others), it helps us help you without having to ask all the basics
about your setup. Please also add the test kit you're using. Glad you’re here!
 

AK-

Gold Supporter
May 11, 2021
367
Randolph, NJ
Pool Size
7000
Surface
Vinyl
I have a Hayward In-line Chlorine. I just leave it.... once I don't need tablets anymore I remove the tablets and just leave as it was.... I guess it ends up full open most of the time.
 

V___25

Gold Supporter
May 30, 2020
237
Central PA
Pool Size
24000
Surface
Vinyl
Chlorine
Liquid Chlorine
I have a Hayward In-line Chlorine. I just leave it.... once I don't need tablets anymore I remove the tablets and just leave as it was.... I guess it ends up full open most of the time.
This. I'm debating having the spouse just cut it out from the plumbing.
 

odelay101

Gold Supporter
Jul 3, 2021
4
New York
With apologies for the delay in getting back on here, thanks so much to everyone for the responses. I decided to go with full open for now an will report back if that causes it to launch into space or anything. Now, I am debating whether to leave it as future vacation fallback or remove it to get rid of the flow restriction. Would be inclined toward the latter if I were a better plumber...

@Lilypad - Thanks for the heads up. Signature added!
 
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AK-

Gold Supporter
May 11, 2021
367
Randolph, NJ
Pool Size
7000
Surface
Vinyl
With apologies for the delay in getting back on here, thanks so much to everyone for the responses. I decided to go with full open for now an will report back if that causes it to launch into space or anything. Now, I am debating whether to leave it as future vacation fallback or remove it to get rid of the flow restriction. Would be inclined toward the latter if I were a better plumber...

@Lilypad - Thanks for the heads up. Signature added!
I was debating the same thing... but this summer have been unusually rainy and I have been using tablets to recoup diluted CYA... in the end it is just matter of postponing the decision
 

PoolStored

Gold Supporter
Jun 24, 2021
564
Ashtabula, OH
Pool Size
31000
Surface
Vinyl
Chlorine
Liquid Chlorine
I pulled mine out. I just connected the out side of the "in" line (where it connected to Chlorinator) to the saddle for the "out" side of the out line.

Said another way, disconnect the "in" line from the Chlorinator and remove the chlorinator and the out line. Then connect the "in" line to the out saddle.

Don't have pic, but until I can redo plumbing, it kept me going.
 
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