Sprayer Pumps

Which of centrifical, diaphragm or piston pumps are better for this application. Bear in mind I do have other uses for this unit, where pressures I can only get from a piston pump are required. My main concern, will piston pumps stand up to use in fertilizer solutions.

I just wanted to know which of centrifical, diaphragm or piston pump stood up best with fertilizer solutions. I particularly wanted to know about the piston pump as I have a good piston pump and an unrelated use whereby I require pressures in excess of 120 lbs. You know and I know I can only get those pressures from a piston pump. Now if I'm going to jeopardize my piston pump by using fertilizer solutions, then I'll go and buy a cheap pump for the fertilizer solutions.

Don't take this as a personal attack, no one has answered the particular question I asked.

See if Gemplers has something that might interest you (link below). If your spraying insecticides your wanting a presure sprayer. If your wanting it more for just applying the fertilize then I think you would want more of a transfer pump. Whatever you decide just make sure the pump if chemical resistant. Might also want to have it agitating while you apply the chemical because lots of fertilizers will settle quite a bit in a short time.

Link

I works good, has brass gears, do not know how it would stand up to Fertilizer.

not a lot of volume but it will get 60-70 psi.

They are cast iron housing with a plastic impeller.

I tried to flush with water then fill with diesel fuel during storage. Without cleaning,before storage, about 2 or 3 years is all you can get out of them before rebuilding them. They are rebuildable.

They will develop about 90 pounds of pressure when needed.

Gary

I wanted a 100 gallon water tank for my trailer, just to have parked in garden when transplanting. What I got with that sprayer was new in box set of no drip nozzles, new liqiud filled pressure gauge and a Hypro piston pump that still turns out 10 gpm as it did when new probably 40 years ago. I really don't want to give my bargain to fertilizer solutions if it wont stand up to that application. I could buy another cheap volume pump for fertilizer solutions. These solutions are new to me, we didn't have them on the east coast when I farmed.