Thread: Hitachi water pump - help please

Originally Posted by benbaaa

The guy who did the big and small doors installed the pump.

oops, call the manufacturer then, that's what I did, and they sent me a good guy

I think you have 5 years warranty on that pump

I think so too. Next job is to find the receipt.

Originally Posted by benbaaa

Next job is to find the receipt.

Even if you do, if the problem is not the pump but the installation, Hitachi's guy will get it sorted but will charge for fixing installation problems.

Originally Posted by Norton

Hitachi's guy will get it sorted but will charge for fixing installation problems.

True, but at least it will be fixed.

Try asking the Hitachi guy if he can report it as a gaurantee repair and then you pay him cash

I don't think it's an installation error, despite Mr Fuckwit who installed it. The pump ran smoothly and silently for at least seven months. It's only in the last couple of weeks we've had this sputtering noise.

Originally Posted by benbaaa

It's only in the last couple of weeks we've had this sputtering noise.

If as you say, pressure at faucets is OK and no air is coming out, sputtering noise may not be air as we assumed. Could be pump impeller noise caused by any number of things. Hitachi guy will get it sorted.

Originally Posted by benbaaa

Next job is to find the receipt.

Hmmm. I seem to have every receipt for everything I've bought since 2001. Except for one.

Search continues.

I had the same prob.
Turned out there was a bit of plastic bag in the impeller.

Originally Posted by the dogcatcher

impeller

WTF is that?

^Good instructions but I think in this case, call the Hitachi guy!

No offense to your skills Benbaaa.

Originally Posted by Norton

No offense to your skills Benbaaa.

Cheeky bugger. I've got a hammer, you know. Still looking for the receipt.

Originally Posted by benbaaa

I've got a hammer, you know. Still looking for the receipt.

A hammer and a receipt. No worries mate. She'll be right.

When you say it runs without taps turned on do you mean all the time.
It's quite normal for a pump to trigger occationally with no taps on.
No system is completely air tight.

Originally Posted by benbaaa

Still looking for the receipt.

Maybe it's jammed in the impeller

^ Fok off.

^^ No, just occasionally, but it seems more often than usual.

You have a slight leak somewhere or the peasants are'nt turning the taps off all the way.
Actually you can see the impeller cover under you hand in the pic.
Yours appears to have 5 bolts, and as suspected isn't painted grey.

The rustling noise could also be the pump on the cusp of turning off.
If a tap is just on then the pump will fire, and just before it clicks off will create a rustling noise. Mine does this but it's rare.
I have an HP 130.

you are not fit to own a fuking pump

13.00 on the 25th. = first post.

It's now 20.12 on the evening of the 3rd.


And you still haven't called a bloke in to fix it.


This beginning to smell.....

Originally Posted by FarangRed

you are not fit to own a fuking pump

I,ve got a fucking pump.
It's completely automatic and makes a sort of squelching noise when I use it.

Originally Posted by benbaaa

I have an automatic water pump (Hitachi GP Series WT-P 250GP) which pumps water from my tank to my taps when I turn them on. It's less than a year old, but recently, I have noticed it running when there are no water taps on in our house. It sound like the pump is trying to pump air and water instead of water.

I checked the water tank first, and it's full of clean water, with no obstruction in the pipe which goes to the pump.

I removed the plastic cover and unscrewed the cap on top (pictured with my fat finger pointing at it), and there was a hiss of escaping gas. I poured water in the hole - Mrs benbaaa said this was the thing to do - until it was full, then screwed the cap on again. This seemed to fix the problem for a while, but now I get the sound of water and air being pumped again. Any advice?

This is my pump.


This is the cap I unscrewed.


Cheers,

bb

The non return valve is located under the cap with three screws just beside or behind the priming plug hole. I have often found debris under this valve which will cause frequent pump cycling.

Hope that fixes it. The washing up will have built up a bit over the last 6 years.