Roof Pump Problem

Instead of messing with the pump cycle, get an accumulator tank to lesson the load on the pump. It will hold the pressure in a bladder and then release. I dont think the pump is supposed to run continuously like that. I also run 200 feet 5/8 hose and a 3/4 inch suction hose. No fuse and I'm going on 2.5 years with the same pump, running all kinds of acid and caustic.

I think your motor just overheated from running constantly. You may also need to vent wherever the pump is kept so it gets some air in there.
 
I have always used larger suction hoses than the inlet and at least 1/2" hose for the outlet.

I have 225' of 1/2" plyovic hose on the roof pump rig, no problem.

I think Bob from PressureTek made a couple videos showing him installing the pump and some recommendations over on youtube, they have some good info on them.
 
If it cycles while running, that alone will tell you your hose is too small. That pump is designed to pump over 5 gpm and you are restricting the flow causing it to overheat. Get a 3/4" or larger suction hose and change your hose to at least 5/8 or larger application hose and set your pump back to factory settings. Factory people usually know whats best thats why they set them that way.
 
The intake and the out put on those pumps are 1/2 inch. You can put a 3 inch intake or output on and it will only draw and put out at a 1/2 inch.
I use 1/2 inc hose on both ends, rinse the pump after each job and have had no problems.
Plus the 1/2 inch hose is lighter and easier to handel.
 
Factory settings are never the same. The absolute right way is to set it using a gauge ( not that I do it ). Even Bob from PT will tell you dont rely that the factory sets it. And the jury is still out on the accumulator. I say an accumulator is worthless and does nothing to increase flow, give you the ability to dial down, or extend the life of the pump.
 
Accumulators are not meant to increase flow. They are not meant to increase the life of the pump. For our purpose they are meant to keep the relays or pressure switch from burning up and to allow a lower flow without the pump cycling. They have been used for over a hundred years to extend the life of pumps and "dial" down pressure. I have used them for years on my delevan Fat Boys.
 
I have never been a fan of Delevan pumps. They are weak and don't last for me. I use marine wash down pumps designed for salt water. If you have a West marine store nearby check out their house brand. They have lasted several years as transfer pumps of straight SH and as roof pumps. You can also buy a replacement warranty for about $30. No questions, just swap it out every year if you want to. Like they others said, use a big inlet. I run my outlet through 300 feet of 3/8 ag hose and my feed is 3/4. I have used 3/4 hose as an outlet but it was a pain to drag around.
 
Buy an air driven pump and you can kiss all of the above problems goodbye and get back to making $$.
 
We jave allways used High Flow pumps 2.5 gpm at 60 psi. These pumps have an internal fan and we are still running one of our rigs on the same pump for over 3 years now. I also built a concrete seal rig last month and applied over 100,000 sq ft of sealer with it in one night with almost never stopping. Still going strong. I think you may have got a bad motor. Check to see if the swith is bad.
 
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