The pump I mounted under my deck has been working great. The one downside is that the pressurized rain water is only available in my back yard. I frequently need water in my front yard. The solution was simple, but not easy to implement.
I bought 100' of 1/2" Purple Reclaimed Water PEX Pipe on clearance from Home Depot 2 years ago. I knew that someday I might need it for this reason. I lucked out. I paid $32 at the time. The 100' coils have been discontinued, and the 300' ft. coils are $118.
fill the rain barrels that feed my drip irrigation system when they get low.
float valve in the picture below is rated for 1.5 gpm at 60 psi. The pump was pulsating and shaking violently while trying to push water through it. I was very disappointed.
float valve. I had the one in the picture below from the rain barrel that I had next to my chicken coop. It wasn't being used since I recently moved that barrel to my front yard. This valve is rated at 12.5 gpm at 60 psi. It allowed the pump to operate with out pulsating for a little while. When the water level started to get high, the valve started to close causing back pressure which made the pump once again pulsate.
Initially I was going to get the Shurflo Accumulator Tank. They made the pump, so why not get their tank? It looked small, super simple to hook up, and it was only $41. I read the reviews and saw that they only hold 10-16 oz. of water (no one was really sure of the exact amount). That didn't seem like much of a buffer. Luckily for me, my local Lowes had a 7-gallon pressure tank on clearance for $41. The tag on the shelf said $88, and that's the price it was listed for at that other Lowes in the area.
The box looked pretty beat up. When I got it out I noticed some scratches, and the manual said the pressure was set to 25 psi from the factory. I checked it with a tire gauge and it was at 39 psi. Someone bought this thing and returned it. I was fine with that as long as it worked. I put a 3/4" FPT x 3/4" FHT fitting on the tank, and attached it to my PVC pipe with a garden hose. This is not, is not, _is not_, a permanent solution. I'm going to move the tank into my crawlspace and plumb it in properly. I just wanted to see if it would solve my pulsating problem.
label the hose bib. I don't want anyone to mistake it for municipal water. It's untreated and while my rabbits and dog have been drinking it for years, it's probably not suitable for humans.