Looking to get a small pump.
I was thinking about getting something like this:
Leaning towards the first one because it has an intake hole that should fit some tubing.
My question is are these pumps suitable for this application?
What size of tubing should I use?
I found conflicting info.
Will the port at the bottom fit the tubing?
5mm?
6mm?
7mm?
Thank you.
If you can't find the size from the specification then buy the pump, measure it and buy the correct size tubing
The pumps are listed as submersible, meaning they cannot suck water from below the intake, as you diagram seems to indicate.
But they're also described as "amphibious" - so who knows what on earth they mean?!
This is the trouble with buying stuff like this from places like Amazon - you're not going to get decent specs, and there's no tech support.
This is one of the key reasons they're cheap!
In order to pull water against gravity, the pump MUST be able to pump air in order to make a vacuum so air pressure can force the water up to the pump. None of these are that type of pump. You either have to prime the pump and maintain a water level so it can pump water, or get a pump that can work for you. Th=at would be a peristaltic or a piston pump or similar.
Only run the pump when there's water to pump?
Well I guess that I will just place the pump in the water.
I think I will get some different sizes of tubing and try it out.
Because these pumps seem to be generic so I though somebody would know what tubing they use.
Considered peristaltic but decided to change plans.
Thank you.
It doesn't necessarily need to be in the water - just to have a head of water at its inlet.
Another trouble with these kinds of things: there's no guarantee that what you get will be exactly the same - especially where there's no specification at all of the inlet & outlet sizes.
Yes. I will do it that way.
Exactly!
The only thing that is nice about buying parts on Amazon is the returns and shipping.
I found a pack that also has tubing included I will get that and see if it works.
If it won’t work I return it.
Did some research and allot of people use 6mm tubes. Maybe I could use 1/4 inch to(have some from drip irrigation and it is sturdy for outside).
Thanks.
Take the pump to a good home/hardware store where they sell tubing off reels.
Does the pump have an inlet tube or inlet hole?
I think inlet hole……
I am just going to buy the pumps and see if they work with 1/4inch tubing.
Thank you.
Your tube goes on outlet pipe? Something about drip irrigation?
A salvage house (buy/sell) that usually has the extra bits is going out of business.
5000 LPH Submersible Pump, $28.95.
It says Note: DO NOT run dry
Note: Must be submerged to at least 2 x the pump height (∼13in)
Oh no…..
Overkill will suck up too much water.
Not if you recirculate the excess water and only take what you need for your project.
The project is just sucking water up a foot and pouring it back down again like a artificial waterfall.
Or run the pump long enough to keep an overhead tank from emptying if not to keep a sump hole from overflowing when the washer is draining and the water heater springs a leak. At 5000 liters/3600 second hour, how many seconds to top an overhead tank up?
