Circupool RJ 30 Install questions- pump pressure also possible electrical issue

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Jack Strap

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Jun 21, 2014
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Allentown, NJ
Hi All,

I completed the installation of my RJ30. I just started up and I'm still using liquid chlorine, my water looks great. When the weather warms up a bit I'll dissolve the salt into the pool and convert. I did run into an issue I didn't anticipate or see during my research. I see on the cell it states maximum pressure 10 psi, do not overpressure this cell. My system which has a 1.5HP Pentair Dynamo pump and 1.5 inch piping for the filter and has ran at about 14 pounds for the last 8 years I have had the pool. Is this 4 extra pounds really a problem, I usually heed all manufacturers recommendations but have no experience in this area. If I drop the pump to a 1" will that provide pressure drop of 4 pounds?

I may also have an electrical issue with the pump size as the maximum draw for that pump is 16.4A @ 120V which is how I'm using it. I'm on a single pole 20A breaker. I called circupool and asked for technical services to determine how many watts the RJ30 uses. Here was my conversation with them; Hi I'm wondering is you can tell me how many watts an RJ30 uses at 120 volts?.......ummm about the same as a light bulb.....Me: so 60 or 100 watts......yeah 60 to 100 watts 5 amps...Me; 5 amps is more like 450 watts which one is it?.....it's 5 amps.....Me; are you sure?.....yeah I'm sure it's 5 amps.....comical but not that helpful. I'm going to measure how much the motor is pulling with a clamp around ammeter and check the total amount that's being pulled when the pump and SWG are running and if I'm over 80% of the rated capacity I'll drop the pump size although there is an outside chance my neutral in the breaker panel will be long enough to convert to 240V in which case my current problem can be resolved that way.

My main concern at this point is the pressure of the cell, I'm currently running the pump 4 hrs a day and I don't want to do any damage, any help is appreciated, thanks.
 
Jack,

I took a quick look through the RJ manual and did not see any reference to a max pressure of 10 lbs... :confused:

I could have missed it of course, but half the pools in the country operate at over 10 lbs. so there must be an error of some kind.

Where did you find the warning??

I would not be concerned about the input power... I believe that your pump and SWCG will operate just fine on your current 20 amp line.

Thanks,

Jim R.
 
Hi Jim,

Thank you for the response, it's written right on top of the cell and not shown in the literature, that's how I got caught off guard....I'm not too concerned about the electric, I'll figure it out if need be, one good thing that will come out of it is I'll take a current measurement and let folks know exactly how much power the RJ30 is drawing so they can use it for future reference.

......I took a photo......IMG_0078.jpg
 
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Wow, I just saw this. I won't be recommending circupool SWGs until they resolve this. Everything in the pool system should be rated for 50 psi max to keep it all consistent. That's a ridiculous thing to spring on you at the last minute. I doubt you'll have any issue at 15 psi, but who's to say.

Whoever responded to you about power shouldn't be doing customer support calls. He's mixing up the power draw at the cell, which is powered by lower voltage DC, with your question about power to the power supply. My bet is it will draw around 100 to 150 watts.
 
Jack,

I suspect that is meant to be a pressure differential across the cell, not your filter pressure.. Otherwise it just does not make any sense at all.

Personally I would not give it a second thought... Almost every pool out there without a VS pump is going to have a filter pressure above 10 lbs...

Thanks,

Jim R.

- - - Updated - - -

You just don't what a valve on the SWCG output that you can close and restrict the output flow...
 
Hi John
Sorry about the confusion but the PSI warning relates to pressure at the salt cell, down-stream of the filter where the typical pressure is 1-3 lbs. (The water at this point is virtually dumping into the pool with very little resistance.) It has nothing to do with the pressure on the filter gauge, upstream of the filter media and naturally quite a bit higher.
The purpose of the warning is to avoid the closure of any valves that may be after the salt cell, such as diverter valves for spas, waterfalls, etc.
Thanks for the opportunity to better explain this issue.

- - - Updated - - -

Sorry about the confusion but the PSI warning relates to pressure at the salt cell, down-stream of the filter where the typical pressure is 1-3 lbs. (The water at this point is virtually dumping into the pool with very little resistance.) It has nothing to do with the pressure on the filter gauge, upstream of the filter media and naturally quite a bit higher.
The purpose of the warning is to avoid the closure of any valves that may be after the salt cell, such as diverter valves for spas, waterfalls, etc.
Thanks for the opportunity to better explain this issue.
 
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