Do I need the check valve if I only use the pump to refill an aquarium about 5 feet high, from a bathroom 25 feet away?
779495
Probably not, unless this is a permanent set up. It sounds like you are bring a hose over to a tank and and filling the tank then draining and disconnecting the hose.
779496
No. Just make sure that your tub (I assume that is your source in the bathroom) has no more water than the aquarium. It will fill the aquarium and stop when the water level in the tub drops below the pickup line (l.5" more or less).
779497
I think you will; otherwise, tendency will be for the water to back-siphon once you shut the pump off.
99636
You'll need to but an air pump to drive this filter. I always get a pump at least one step up from the aquarium size I am setting up. You'll also need an air hose to connect the 2.
98509
Not sure in distance. But does pump good pressure if u have a way to regulate it
1638590
Yes. As long as you have a return line running back to your water heater. You do not need a separate return line at every faucet. You need one return line. Follow your hot water pipe to the end (last branch takeoff), cut in a tee and run pex or copper. At the bottom of your tank style water heater there is a small, usually plastic valve. Remove that valve and screw in a 3/4" brass or stainless pipe nipple. Then install a tee inline with side outlet looking up and in the end of the tee put a brass drain valve to replace the crappy plastic one if applicable. The side connection on the tee you installed is where you will connect your return line you just ran. I did not notice if this pump had a built in check valve but if not you may want one to prevent water from flowing through both the hot water main and the hot water return to the faucet nearest the end. Water will follow the path of least resistance so the last branch on the main usually ends up being similar in distance to the water heater from either line. As a result water can back feed up the return line and will bring the cold water entering the tank with it. This is especially true when a second source of hot water is being used at the same time hence the need for a check valve.
713107
You can install a check valve in any position you wish, however I am not sure why you would ever need to use it in a horizontal position. One uses this valve to stop back flow.
114166
The pump pumps the water up, the check valve stops the water flowing back down the pipe. So yes you will need one if your pumping laundry water from the basement, where you get one from is your call. Their cheap and widely available.
1689069
This is a suction type pump all of the pump is in the part you see in the picture, This pump is made to pump out of shallow aquifers or out of a water storage system, that is under it. If your asking about horizontal, a pipe could most likely be 5 miles long horizontaly level, and if it was full of water NO AIR in it and the rise was not more than 20 feet it would probably pump out of it with out problems. to the pump for the most part all it is seeing is the height or the distance/depth to water, (a check valve/foot valve, should be used to keep the suction pipe full, The pump will only pump water out of the spout of the pump, as there is no seal or way of attaching a pipe to the pump to pump above the unit,
805518
I have one of these and a bigger one that is for up to 40 gallon tanks and if I remember correctly they both came with the pump and a check valve....it has been quite a while since I got this particular pump though
1394891
No, if you use it with a 1/4" drip line, you will need to include a separate 25 psi pressure reducer
8010
Anytime, and if you do keep it below the tank I would recommed and air check valve with your pump and airline, as well as a pump rated well above your tank;s volume, I would recommend a 75 gallon pump or higher...
1211968
I installed this is a friend's house and can't get there to check the dimensions. It seems to me that it did not expand much beyond the outside diameter. The expansion was design to create a tight seal. If you have extra room, I'd probably insert a plastic pipe or rubber from an inner tube to take up the space. It's worth the effort. My friend had a flooded basement once because she did not have the check valve. Stan
114167
All sewage/sump pumps need to have check valve install in order to work properly. If you have one already and it works properly then you don't need to buy a new check valve.
1911287
No. If you had positive pressure why would you need a pump? Just install a valve. Fully agree with previous answers.
1945053
Nope this would go on the pressure side of the pump. Order would be fresh water tank, then pump, then accumulator, then the rest of the plumbing system. This accumulator will act as a shock absorber for the water pressure in the system. If you need more detail let me know.
1552049
If this comes with two garden hose adapters (mine only had one, but that was a long time ago) then Pete B is correct, hose is all you need for moving water. If you use 5/8 garden hose in and out you will lose some potential from the pump but that may be OK for your application. I didn't try this because I wanted to put a foot valve on mine to make priming easier. Who knows, maybe somebody sells a 5/8 foot valve.
1951739
No. I had to cut a hole in my water container in order for the pump to fit, and the diameter of the hole was greater than 5 inches
212547
My guess is no. My pump is pulling out of a well about 13 ft deep and then up a 6% grade about 25 yards but I have a pressure tank with it..