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DownwardDawg
10/06/2012, 12:06 PM
I just purchased a BRS perilistic dosing pump. It's the 50ml/minute pump for ATO purposes. My question is how durable are these pumps. How much can they be run before having issues with the tube that's inside the pump? I have my ATO plugged into my RKL. The port where it's plugged in is setup on a timer. I have that port turning on every hour for 8 minutes. Only if the Avast pressure switch senses low water, will the pump operate. This method was pointed out on this forum by another poster (can't remember who). The BRS pump doesn't seem to be keeping up with my evaporation levels. I am going to change the timer to 10 minutes every hour and see if that keeps up. Will this pump last a while running it this much?

Jeff_NJ
10/06/2012, 12:25 PM
Pretty sure the documentation says you should expect one year out of the tube with a 4 hour max per day duty cycle. Just do you math based on those figures and you will have your answer.

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DownwardDawg
10/06/2012, 12:36 PM
Thanks. I guess the tube can be replaced? I emailed BRS.

jerpa
10/06/2012, 12:43 PM
Yes the tube is considered a consumable part. BRS sells replacement sets for their pumps.

DownwardDawg
10/06/2012, 01:13 PM
Yes the tube is considered a consumable part. BRS sells replacement sets for their pumps.

Thanks

DownwardDawg
10/06/2012, 02:11 PM
Does that seem like too much evaporation for a 125? The t5's are running 12 hours a day but the halides are only running 3 hours a day right now. I do have fans blowing in the canopy for several hours in the evening.

Buckeye Hydro
10/07/2012, 01:53 PM
You typically use a pump rated for highr volume for ATO purposes.

Russ

Toadally
10/07/2012, 02:30 PM
I've had one for ATO for over three years. They are great pumps. It's connected to an autotopoff.com switch. I have no idea how long it runs each day, but my evap is about a gallon a day. I'm really slack about changing the tubes out, but haven't had any issues yet....knock on glass! :)

Buckeye Hydro
10/07/2012, 03:20 PM
1 gallon per day = 3,785 ml/day
a 50 ml./min pump would make that in about 76 minutes.

DownwardDawg
10/07/2012, 03:58 PM
1 gallon per day = 3,785 ml/day
a 50 ml./min pump would make that in about 76 minutes.

Yeah the maths not adding up. I think I'm evaporating about 1-1/2 gals per day. Although I did notice earlier that the timer had the port "energized" but the water level was perfect sp to ATO switch was not letting the pump run. Maybe it's catching up now and I'll have to keep adjusting the time.

DownwardDawg
10/07/2012, 04:03 PM
I was using an aqua lifter pump before and I read that it's not nearly as reliable as the BRS pump. Also the aqua lifter would continue to add water even when the pump turned off due to the output being below the ATO water level. This is not the case with the BRS pump.

Buckeye Hydro
10/07/2012, 04:46 PM
Thanks. I guess the tube can be replaced? I emailed BRS.

If they are out of stock we sell the same pump and have replacement tubes in stock.

Russ

DownwardDawg
10/07/2012, 05:02 PM
If they are out of stock we sell the same pump and have replacement tubes in stock.

Russ

Thanks.

Toadally
10/07/2012, 08:16 PM
1 gallon per day = 3,785 ml/day
a 50 ml./min pump would make that in about 76 minutes.

Thanks for the math.. :thumbsup: