Simer 2305-04 Geyser II 1/4 HP Submersible Utility Pump , Black

I purchased this pump for use in my home construction area that is prone to flooding. Description: I won't rewrite the manufacturers description, but would like to note the very durable impact resistant case, and the highly stable, upright position of the pump due to the wide base and low center of gravity. Put to the Test: I've used this pump outdoors on more than twenty occasions, twice having continuous pumping for over 36 hours. My home expansion construction site floods during heavy rain from soil and roof runoff, and every time I have successfully removed about 99% the water with the Geyser II. Sometimes the water was quite full of silt and plant debris, but the pump never stopped working. (I took another reviewer's suggestion to drill holes in a plastic 5 gallon bucket. This worked nicely to limit leaf debris from clogging the pump base.) Specification: Curious about the 1260 GPH spec, and also interested in calculating how much water I had pumped, I performed a calibration of the pump under typical conditions at my site. I placed the pump in the aforementioned hole riddled bucket with the pump base submerged approximately 16 inches. I had 2 x 50' lengths of 3/4 hose connected to the outlet with approximately 3 1/2 feet of rise from the pump base to the hose outlet. The pump was connected to power with a 12 gauge 25' outdoor extension cord. I also did a quick calibration of the bucket to confirm 5 gallons to be very near the top of the bucket. I timed 5 gallons fill 3 times, with an average of 46 seconds. This calculates to 9.6 secs/gallon or 375 GPH. This is substantially less than the advertised pump rate, so keep in mind 2 factors that will affect your results: water head height and pipe back pressure. So to improve your pump performance, if possible, decrease the height the water is pumped and decrease the pipe back pressure by shortening the length of effluent hose or by increasing its diameter. By my calibration, I can roughly calculate the Geyser II pumped 13,500 gallons in the 36 hour stretch. Quite impressive I think. Important note: I've read other reviewers describe running the pump dry for extended period. When I did this, perhaps for an hour or so after the pump evacuated all the water from the site, I noticed the cord and plug got quite hot. I'm not sure if the cord is underrated for the amount of current when pumping dry, but I suggest users pay attention to this if they pump dry. Conclusion: I am very pleased with this pump's performance, despite my conditions not resulting in the advertised pump rate. I think the manufacture must have used the most ideal conditions to arrive at the 1260 GPH rate; perhaps measured with NO effluent hose, and pump submerged to the level of outlet. But, in my opinion, that is not really a realistic operating condition. Cheers!

This was a great a pump. I bought it to pump about 2.5 feet of water from a leaky cellar that was quickly filling my yard with mosquitos. I had it pumped in about 1.5 hours. Love that hose adapter. Don't buy the discharge hoses unless you need it pumped very rapidly. The garden hose works just fine. Cons: I don't like that it didn't have an auto off. I had to watch over it to make sure it didn't airlock and burn up. Took more time than I really wanted to spend doing that and if I had it to do over I would find one that did. I still have some water in the cellar and I'm going to buy a shop vac and vacuum the rest up and place the pump inside of the shop vac to discharge the water because it would be too heavy for me to carry up the cellar steps. The cord is longer than most cords but I found myself wishing it were longer because I have a hard time keeping the extension cord I use with it out of the water in the cellar. Other than that, I have been greatly pleased. You will also notice there is a second model similar to this one but it is blue and twice the price. I called the company that makes this and they told me they are exactly the same, with the only difference being that the higher priced pump has a two year warranty where this one has a one year warranty.

I just used this pump to flush out my tankless water heater and it worked flawlessly. It maintained good pressure for the 45 minutes I ran it. It did start to heat up the vinegar quite a bit after that amount of time, but I don't think it was a problem. I would recommend this pump to anyone needing a utility pump for small jobs like this. I haven't tried to pump out a hot tub or anything else, so I can't say if it would be good for this purpose or not. I should mention I used the adapter and a laundry hose when flushing my tankless heater. The pump was situated about 3 - 4 feet below my tankless heater. Now this is the 2nd pump I received from Amazon. The first one came and was missing the adapter and appeared to be used. I immediately told Amazon about it and they shipped me a new one in 3 days, and sent me a postage paid return label so I could just drop the old one off at the post office. They also offered me a sincere apology. I had over a month to return the old one (before they would charge me for it). I thought the service I received by Amazon was excellent, and would highly recommend them for any product you wish to order.

I needed to pump out a 20'x20'x7' deep pit filled to the top with rain water and with the usual muck (mud and leaves) at the bottom. I took the pump out of the box, attached the included garden hose adapter (you just manually screw in on); attached a 25' garden hose; connected a long 3-prong extension cord; and lowered the pump to the bottom of the pit. It took a few seconds to "charge" (fill with water), then produced an output like you'd get with a faucet on full-blast. It ran for 20 hours continuously and emptied the pit down to the last few 10s of gallons before I unplugged the extension cord from the garage outlet. Now I could see that the pump had landed on its side on the mucky bottom, but (luckily?) with the "anti-airlock hole" facing up. I say "luckily?" because the power of the water going through this narrow anti-airlock hole is probably enough to have excavated an adequate hole in the mud if the pump had landed anti-airlock-hole-side down. Next time I'll try to use a bucket with holes punched in it to help shield the pump better from muck and other detritus, but this time it worked fine lying unprotected, on its side, on the muddy bottom. I also tried it on a ~1/2" deep puddle in my garage. Initially, it just sat there sputtering loudly via the anti-airlock hole but not moving any water through the hose. So, for you newbies (like me): If you're trying to suck up very shallow pools of water, you have to "charge" the pump first by submerging it in deep-enough water (I used a 5 gallon bucket of tap water) to get the water flowing out the top where the hose is connected. Then, as long as you move the working pump fast enough from the bucket to the floor, it will continue to pump water until it gets down to the 1/8th inch depth of water limit. Another reviewer had a great tip for shallow (ie <1/8th inch) water when he recommended using your wet/dry vac as a sump to collect this water, then submerging this pump into the filled-up wet/dry vac to empty. And finally, a mighty shout out for Amazon's wonderful customer service: My first order was sent Parcel Post (Amazon's free shipping over $25 option) on 12/15, estimated to arrive 12/22. USPS tracking alleged that it was delivered on 12/18, but it definitely was NOT - someone was here all day. (It never did arrive.) So, I used Amazon's on-line option to request a call-back to my landline phone within 5 minutes. Wonder of wonders, a competent human did, and she offered, without hesitation, to send me a replacement immediately via FREE next-day Fed-Ex. And that's exactly what happened.

Purchased a Geyser III classic back in 1993, used it every weekend pumping water out of rain barrels.... worked great for 18 years then the electrical shorted out. I order the simer 2305 on Saturday it was delivered on Tuesday ... regular UPS. This was quick. Awesome I needed it to pump the water off my pool cover (back into the pool). Plugged this in, no extension cord ... this pump just made a slight humm. I submersed in water... no pumping.. just slightly humming. I called Simer and they said its defective.. return to amazon. Aside from it not working, it seemed cheaply made. The instructions to take off the bottom screen is not clear and you are afraid to break the cheaply made plastic clips.

I have a low area in my new houses yard, about 10x15 foot foot that fills with water constantly. I got this pump today and cleaned out the water that was still there. It was muddy and brown and it still sucked the majority of it away. Well tonight it has rained really really hard. I plugged the pump in and placed it in the middle of the depression. For the last 4 hours it has been pumping hard out of a 50 foot garden hose, more pressure then I get out of it connected to a faucet. The water got a 30 minute head start on me, but it hasn't risen since I started the pump. I am happy This pump works so well. I got a cheaper one not really knowing if this was what I needed to suck water out of my lawn, kinda of a test. Well it works great, and I really don't think I need a stronger one. Until I get that depression filled I am sure I will be using it a lot.

Perfect, works great. Update December 2017... Let me quote Simer, "With built-in thermal overload protection" Yeah right, On eight use the float switch I had connected failed & the so called "thermal overload protection" never protected anything, the pool ran dry & the pump motor overheated & burnt out!, With built-in thermal overload protection my ...

I bought this to pump out my crawlspace after my built-in sump pump failed. I had no idea just how much water was down there and I ran this pump every day for over two weeks. I did turn it off at night since I couldn't monitor it. The pump ran great with no issues with a strong steady flow out of a garden hose I attached to it. Even when it seemed like there was barely any water left on top of the vapor barrier, it just kept coming and the pump did great handling it. I checked it frequently worrying that the water level would be too low for it and burn out the motor but it never had any issues. Although I replaced my built-in pump, I'm keeping this handy for backup and other purposes. My garage floor accumulates a lot of water from melting snow in the winter and I plan to hook this little guy up to keep it a dry.

This is a very reliable efficient little pump.

Price was decent, speed is good, perfect for emptying a 1600 liters spa for sure. No complaints, but haven't had it long enough to talk about reliability.

I bought this pump to have a spare pump i currently have a 1/6hp and its over 20 years old and still works, if this pump is as good as my old pump I would totally recommend this brand its one of the best pumps in the world. As I haven't used the new one yet.

worked well for one season. Cheap price but non durable.

It works great