How does the pump work? Does it force water through the tubes, or is there an exit line through the bottom of the D5?
1273263
The pump pushes water through the holes in the reservoir that are right above the pump. There's three holes, but you only need one exit and one return line to make the loop.
1273264
Basically at bottom of the pump there is 3 holes, where you attach the tubing, to two holes(in-let) other hole (out-let) 3rd hole is covered with a screw cap, fill up the tube and water will go out one tube(via the pump, pumping water on the base of the tube) to your radiator then to your cpu and back your cpu then back to your tube, its a enclosed loop, to till it up there is a screw cap on the top, pretty simple. Check you my video under reviews of this pump.
674581
A faulty sensor or a small hole in the diaphragm, sorry not much help. You almost would need to out a pressure gauge on the line to see if it is true pressure drop triggering the cycle or a bleed in the system back through the pump. Crud or a hole interfearing with the actual pump assembly (not the motor). Aren't these things fun!
2274553
Unless i have been using it wrong, the hose is where the water is expelled not entered. I tried to pump thru the hose and it wouldn't suck any water up thru the hose. I could be wrong make sure to verify 1st answer.
1610421
It will work at a 5' depth. Intake screen at bottom of pump must remain fairly clean. If it gets clogged, no water flow.
435911
It is simple. Just unscrew pump handle while pushing down on it. Then fill with liquid being careful not to fill above the mark for maximum fill. Good luck.
1391916
That is just how this pump works. You can slap the water on top of the drain several times to evacuate whatever is left in this sink. I always wondered if a more expensive pump would not work like this.
2066348
Lawrence has the correct answer to your question. That little knob on the tube controls the flow of water, for more or less water flow.this is the only control on that pump, enjoy. Percy Gagnon
2148948
basically a check valve does two things. If your exiting line from the pump runs level or slightly uphill, the check valve should keep the outflow on the exit side from coming back through the pump on shutdown. It would also prevent inflow from the outside back into the pump in a case where you have the pump dumping into an area that could collect outside water above the level of the exit. Both of these situations could be avoided by positioning the pump and the outflow line such that water would only flow away from the pump and to a lowspot that is sure to be lower than the pump outlet. Particularly if you are only using it several times per year. So have at it but keep the flow going with gravity not against it.
923221
You screw the water hose in one port, then a "drainage" hose on the other port. I just drain mine in the grass and work fast. Most small pumps can't handle it.
1704731
Line vs. load- I usually use the center two screws as load and the outer two as line in. You are getting power to the pump or it wouldn't be working. Try backing the cut out control nut out to reduce pressure "the one with the short spring located off center". If all else fails remove the switch and unscrew the backing plate, remove the diaphragm. You can test the switch manually by pressing on the center of the mechanism with your thumbs. Also while you have it apart look through the inlet pipe. The actual water inlet hole is quite small and can become clogged. Reassembly doesn't require any kind of sealant. Line vs. load- I usually use the center two screws as load and the outer two as line in. You are getting power to the pump or it wouldn't be working. Try backing the cut out control nut out to reduce pressure "the one with the short spring located off center". If all else fails remove the switch and unscrew the backing plate, remove the diaphragm. You can test the switch manually by pressing on the center of the mechanism with your thumbs. Also while you have it apart look through the inlet pipe. The actual water inlet hole is quite small and can become clogged. Reassembly doesn't... » Read More Line vs. load- I usually use the center two screws as load and the outer two as line in. You are getting power to the pump or it wouldn't be working. Try backing the cut out control nut out to reduce pressure "the one with the short spring located off center". If all else fails remove the switch and unscrew the backing plate, remove the diaphragm. You can test the switch manually by pressing on the center of the mechanism with your thumbs. Also while you have it apart look through the inlet pipe. The actual water inlet hole is quite small and can become clogged. Reassembly doesn't require any kind of sealant. « Show Less
1376878
I use this pump to circulate water from 18 gal tub to six tomato plants. It works great and moves plenty of water. I'm not sure how it would water orchids without running dry. I water my outdoor plants with a Orbit Single Dial Water Timer connected to a "y" connector at the faucet. I've ran 1/4" vinyl tubing with drippers from the timer.
2211064
Return side, you want the pump to be throttled back from the effluent (outgoing) side of the pump. If you out it on the influent(incoming) side of the pump you could create a situation where the pump is running and not enough water to getting to it. Pumps need to have as much water available to them as possible. Not only do I run small pumps in aquaculture systems, but I am maintenance manager for a rural water district maintaining their pumps as well.
1436801
If you read my reply, I said that there is a little motor with it. Sorry - thought that was clear. Note: a motor is not the same as a pump; however, it does move the water around, as in agitate.
1095096
It has an automatic float that determines how much to pump out. You'll find it shuts off just above the bottom of the the impeller blade. This is normal on all the sewage pumps I've used over the 25 years I've been using them.
1369316
I think all the logic is done in the controller in the plug unit. It arms when either sensor is submerged and activates when the other submerges. The pump then stops when the water level drops below both sensors.
2148524
That is a good question. It doesn't appear to have high discharge pressure, so I don't think it would do too well. I have pumped from the ground level up higher with no real problem. Probably any sort of restriction would keep the flow way down. Keep in mind that the pump is driven by a battery.
1495919
You have to make sure the pump is completely pushed down and suction to the bottom of the tank it can't be touching any of the walls or sides of the tank