Submerged pump for a Well

How deep is the well water level? keep us informed on getting inside, I suspect they are fully encased moulded-in, ie a real hacking job to get inside.

Can't you get it replaced under guarantee?

I think the bottom of the Well is about 12-15m down; currently, the water level is about 3m down. Yes, getting inside without damage is going to be a challenge

They replaced the first one that failed, but the warranty is only 1 year so they won't replace this second failure. They aren't cheap pumps, and such a short warranty seems pretty poor for a company that trades on a perception of quality. They told me that they don't make these pumps themselves, so I presume it's the usual Chinese re-badge

I have a pump out the back of the house to pump rainwater away, a long story but the hole it was in was too deep so the pump ran almost continuously in wet weather and now I have set the pump close to ground level it hardly ever runs. Regarding your query I have had a series of cheap pumps from toolstation and the like and they were surprisingly good, considering. The one in now has been there several years doing not much. One did several years of much pumping. I don't expect any of them to be submerged and still work for very many years, but they don't cost much and I keep a spare in the shed. TW

I suppose the pump could be suspended from a float such that is not exposed to high water pressure.

I have a cheap Chinese submersible moving water from a rainwater tank into my greenhouse. Just starting the 4th. year of operation...

"I think the bottom of the Well is about 12-15m down; currently, the water level is about 3m down."

Do you mean the well is mostly full of water (as in the drawing)

-----------+ Well +---------- ^ | | ^ | | | 3m | |/\/\/\/\| v | | | 15m | | | | | | | | v +--------+

or is the well mostly empty, with 3m of water at the bottom ?

-----------+ Well +---------- ^ | | | | | | | | | | | 15m | | | |/\/\/\/\| ^ | | | 3m v +--------+ v

You would be exceeding this spec, with the first drawing (if you lower the pump all the way to the bottom of the pit). There is 12m of water, over top of an 8m-rated submersible pump.

"Features • Submersible up to 8 metres"

People who are in a rural area and live on well water, they would be able to tell you what kind of pump they use. Maybe it's a jet pump.

It's your first sketch - nearly full - but the pump is suspended on a rope, at an appropriate depth