run times and %

gqjeff

LifeTime Supporter
Jul 19, 2010
203
IL
Can some of you give me your run times and at what %? I am setting mine up and just want to know how others have there's running.

Thanks
 

svenpup

LifeTime Supporter
Nov 18, 2009
835
Sacramento, CA
My SWCG came with tuning instructions: Start at 8 hours @ 50% and go from there. It has a table of what to do if you are low or high based on you current percentage.

Getting values from other people will be of little use because there is so much variability in specifics of pools and chlorine generators. Your pool's chlorine demand and size relative to SWCG capacity will be unique to you.
 

gqjeff

LifeTime Supporter
Jul 19, 2010
203
IL
Just wondering if people r running them at night also or more during the daylight hours..
 

gqjeff

LifeTime Supporter
Jul 19, 2010
203
IL
OK great. That was really the kind of info I wanted. I guess I should have asked the question better LOL. I have a 2hp pump now but in a few days the 1hp 2 speed pump will be here to replace it. Time to start saving some money on electric.
 

bk406

Well-known member
Dec 3, 2009
2,690
Central Massachusetts
What kind of SWCG do you have?

Just make sure that if/when you run your new pump on low speed the SWCG can make chlorine. A lot of them require a certain flow for them to operate. If it doesnt, then the run times may have to be adjusted since chlorine will not be made when the pump is on low. Not saying this is the case for yours, but something to watch for.
 

svenpup

LifeTime Supporter
Nov 18, 2009
835
Sacramento, CA
bk406, thanks for the concern, but it is unwarranted. I have the Nano with the RC-35/22 manifold. There is a flow sensor so the unit reports if the flow is insufficient.
 

gqjeff

LifeTime Supporter
Jul 19, 2010
203
IL
Mines and aqua trol. It has a flow monitor inline so if there is not enough flow it will not generate. The low flow lite will light up if that is the case. I am hoping that will not be a problem though.
 

jasonknox

Platinum Supporter
May 4, 2010
300
SW Georgia
I run my pump 4 hours in the morning and 5 hours in the evening. This is amount of time it takes to cycle my pool water one time. I do not have a SWG but would guess that run time would be affected more by chlorine generation than by water movement.
 

bk406

Well-known member
Dec 3, 2009
2,690
Central Massachusetts
svenpup said:
bk406, thanks for the concern, but it is unwarranted. I have the Nano with the RC-35/22 manifold. There is a flow sensor so the unit reports if the flow is insufficient.
I was actually asking gqjeff :mrgreen:

His sig doesnt have the make of his SWCG.
 

serge

Well-known member
Nov 2, 2009
94
Katy, TX
I have an IC-40. Running the pumps from 7-11 am and then from 4-8 pm...I have the IC-40 unit at 75% to maintain 4-6 ppm (50 CYA)...Pool gets sun all day...when overcast, i set unit at 60-65%
 

Henry Porter

LifeTime Supporter
Nov 7, 2008
604
Sweden
I run mine during the day from 8am to 8pm, most of the time on the lowest output. My SWG generates 24g/h on full speed!
 

bk406

Well-known member
Dec 3, 2009
2,690
Central Massachusetts
I run my pump 12 hours a day. My IC-40 stays on 20-35%, depending on swimmers load. CYA of 40 lately. If nobody has been in for a few days and the solar cover stays on, i can turn it down to 15% and maintain an FC of 5 or so. It all depends on pool use, climate, pool size, and SWG size.
 

Henry Porter

LifeTime Supporter
Nov 7, 2008
604
Sweden
I have a cya of just over 50 that was what I've got from one bucket of stabilizer. I will increase my CYA next season to recommended levels. But it has worked fine so far with lower a level, FC sit's pretty still on 2,5-3,0.
 

bk406

Well-known member
Dec 3, 2009
2,690
Central Massachusetts
gqjeff said:
Why are people running the low CYA levels when 60-80 are recommended?
80 ppm is the recommended level because that is what works a lot of the time. There are pluses to running it that high. The real effect is that the SWG doesnt have to run as much to maintain FC in the pool. The added effect is:
1) the SWG doesnt have to stay on as long therefore lengthening the life of the unit.
2) Since its not on as much, there isnt as much upward pressure on the pH of the pool; less acid demand.

But, there are downsides.
1) the steady state FC needed is higher since the CYA is higher
2) It may actually have to run a little longer to keep that level
3) the amount of FC you need to add if you ever need to shock the pool is pretty high.


I run a lower cyA because i can. My SWCG run time is minimal. i keep my TA around 70, so my pH rise is non-existant. Believe it or not, since opening, I have not added one drop of acid in 3 months. the sun angle in New England is not as high as down south, so i dont use as much chlorine as you would in say florida. There is nothng magic about a SWG and a recommended of CYA of 80 ppm. If the SWCG is underized for the pool, then yes, that high a CYA is needed. mine is over sized for the pool, and my FC demand is low.
 

acroy

Well-known member
May 11, 2010
186
Dallas TX
Aquaclear lm2-24 in a 33k pool - undersized. It runs 6hrs a day @ 100%, FC stays at 1. CYA is 95-100.

It would have to run 18hrs to maintain 3-4 FC. Too expensive spinning the 2.5hp motor. 6hr runtime is enough to keep the water nice and clear. So I dose it up with bleach.

good luck!
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,880
Silver Spring, MD
bk406 said:
2) It may actually have to run a little longer to keep that level
Everything else you said was right, but this one isn't. Higher CYA levels mean less total chlorine used, thus shorter run times at lower percentages, despite the higher FC target levels.
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,880
Silver Spring, MD
FC at 1 is too low. Chances are that if you ran at higher FC levels you would actually use less chlorine. With FC around 1 it is very easy for algae to get started. You might not even see it because the constant chlorine additions from the SWG keep it in check, but it will be there using up chlorine all the time.
 

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