Some Needed Info
Whenever I see such disparities in reviews, it makes me wonder why some individuals are having such poor results. One assumes that they must be doing something very wrong in order to have such a product not perform as expected. Yet my experience with the Wayne RUP160 1/6-Horsepower 3,000 GPH Oilless Submersible Utility Water Pump
makes me appreciate both the positive and negative reviews.
First of all, according to the manufacturer:
1. At least ˝ inch of water is needed to prime and operate the pump
2. The pump should not be operated if the water level is 3/8 inch or less
3. There is no mention of "the bottom suction can get water within 1/8-inch of the surface"
4. A discharge hose of 1-1/4 inches should be used
5. Despite a 3/4in. adjustable discharge adapter which connects to standard garden hose I couldn't find it listed that a garden hose would be acceptable
6. Do not allow pump to run dry. The shaft seal depends on water for lubrication. Operating pump without water will damage the shaft seal and cause pump failure.
So, after finding a "safe room" in our temporary rented home to have approximately 1 inch of stagnant water in it which was next to my bedroom I decided to get this pump to transfer water to a 2 foot holding tank (this was after purchasing to larger sump pumps including the Little Giant 6-CIA, 1/3 HP, 45 GPM - Automatic Submersible Sump Pump, 10' power cord (506168)
which would then pump the water out a 1 ˝ inch hose).
I purchased this pump with the Apex 15-Foot Connector Hose Remnants #REM 15
(which was listed as 5/8" x 15') which connected to the garden house adapter, drop it into the water and turned it on. I could hear the pump running but nothing was coming out my 15 foot hose which was lying on the ground. To be sure, I placed the pump in a 12 inch bucket of water and still no water was coming out the hose. Feeling confused and starting to feel that this room would never be dry I took off the hose, dropped the pump back into the 1 inch water and presto water started flying out the pump at least 4 or 5 feet and bouncing off the wall. I concluded the 15 foot hose was to long and cut the hose into but still no luck. I continued shortening the garden house until it was approximately 12 - 18 inches and finally got enough water flow to fill up my holding tank. Note I haven't hooked it up to a 1-1/4 inch discharge hose yet.
So my main conclusions would be:
1. Strongly consider using a 1-1/4 inch discharge hose for good results
2. If you are looking a water levels consistently less than ˝ inches consider another pump
3. Prime the pump in at least ˝ inches of water
4. Remember not to let the pump run dry
Addendum: Please see history above. On July 17, 2009 I took off the garden hose adapter and the 3/8 inch garden hose and used the Little Giant SDHK114 1-1/4 Inch-by-24-Foot Sump Pump Discharge Hose Kit
and what a difference. This little pump was quickly pumping water at least 10 - 12 feet straight up with no problems.
I will therefore raise my rating to 4 stars and stress:
1. Use a 1 1/4 discharge hose
2. Minimum water level 3/8 to 1/2 inches
3. Don't run dry and the pump does not shut off automatically
4. I would forget about the garden hose and garden hose adapter