Sensormax pump.

[kayak]

Morning all.

 

Im sure im driving eveyone mad by now woth my questions but here I go again. I finally filled up the water tank and primed the water system on the boat on Saturday (cold side only). All went well with no visible leaks! Quite a big acheivement for me because im scared to death of plumbing. The pump I have is a 17LPM sensormax, and on the face of it it seems quite good. The pump seems to give a really good judder free flow and easily copes (pressure wise) with all the cold taps fully open together. However, even though being advertised as "virtually silent" this is far from true. So much so that i think i have a faulty pump. When the pump is operating at a speed enough to run just one tap at half flow, it makes the most unbearale noise! It vibrates so much that i was worried it would damage the plumbing. So much so that I didnt dare carry on with the hot system untill I'd talked to Jabsco.

 

Has anyone else experianced any problems with these pumps? I know that a few other people have said that they're not as quiet as advertised but.........

 

Just sat now looking through the installation instructions and it says "The VSD electronics require a battery installed in the DC powers supply when using an AC to DC converter or battery charging system"

 

I know it sounds a bit think but does this mean you need a battery installed if you dont really have a dc system and are just running from a converter?

With a normal boat set up with an AC and a DC system I take it this doesnt mean I need another battery in the system somewhere?

 

Any help is great!!

 

Kayak.

Edited April 26, 2010 by kayak

[Nickhlx]

Morning all.

 

Im sure im driving eveyone mad by now woth my questions but here I go again. I finally filled up the water tank and primed the water system on the boat on Saturday (cold side only). All went well with no visible leaks! Quite a big acheivement for me because im scared to death of plumbing. The pump I have is a 17LPM sensormax, and on the face of it it seems quite good. The pump seems to give a really good judder free flow and easily copes (pressure wise) with all the cold taps fully open together. However, even though being advertised as "virtually silent" this is far from true. So much so that i think i have a faulty pump. When the pump is operating at a speed enough to run just one tap at half flow, it makes the most unbearale noise! It vibrates so much that i was worried it would damage the plumbing. So much so that I didnt dare carry on with the hot system untill I'd talked to Jabsco.

 

Has anyone else experianced any problems with these pumps? I know that a few other people have said that they're not as quiet as advertised but.........

 

Just sat now looking through the installation instructions and it says "The VSD electronics require a battery installed in the DC powers supply when using an AC to DC converter or battery charging system"

 

I know it sounds a bit think but does this mean you need a battery installed if you dont really have a dc system and are just running from a converter?

With a normal boat set up with an AC and a DC system I take it this doesnt mean I need another battery in the system somewhere?

 

Any help is great!!

 

Kayak.

 

I imagine what it probably means is that it would help to have a battery across the supply lines from the converter in case the converter has a lot of ripple on it - a battery would smooth out the ripple and this in turn could make it quieter - you could try a small car battery local to the pump or a motorbike battery

 

Nick

[bottle]

My understanding is that the pump must be connected to the domestic batteries, as per normal.

 

Nothing special but it also means that you could not for instance run it directly from a charger (AC to DC converter)

 

No extra battery required.

[paulcatchpole]

My understanding is that the pump must be connected to the domestic batteries, as per normal.

 

Nothing special but it also means that you could not for instance run it directly from a charger (AC to DC converter)

 

No extra battery required.

 

That's my understanding too - we've got one of these, probably the exact same model.

 

They're not silent though! Flat out, it's not really any quieter than our old shurflo simple one, but admittedly, when it runs slowly 'cause you've only got a tap on a small amount, it is capable of being fairly quiet.

 

It's a huge amount more quiet than the 45psi 20L/min Whale one I've bought for the project boat, which really does feel like it'll shake the boat apart - I think the lack of an accumulator yet isn't helping that!

 

Have you piped it up rigidly? We've got ours on wide-bore flexis, which helps with transmitted vibration into the piping.

 

PC

[kayak]

That's my understanding too - we've got one of these, probably the exact same model.

 

They're not silent though! Flat out, it's not really any quieter than our old shurflo simple one, but admittedly, when it runs slowly 'cause you've only got a tap on a small amount, it is capable of being fairly quiet.

 

It's a huge amount more quiet than the 45psi 20L/min Whale one I've bought for the project boat, which really does feel like it'll shake the boat apart - I think the lack of an accumulator yet isn't helping that!

 

Have you piped it up rigidly? We've got ours on wide-bore flexis, which helps with transmitted vibration into the piping.

 

PC

 

 

Its piped up with flexis either side like yours. Just to test it i held the pump off the floor while the OH turned the taps on and it still vibrated the pipes. I've been in contact with Jabsco and they were really helpfull. Luckily the pump has a 3 year warrenty so i can send it back.

 

With reference to the electrical bit it sound like i understood correctly and that side of it is ok. Im getting a good voltage at the pump too. Just my luck to get a faulty one.

 

Not having much luck lately with the plumbing and toilet system due to incorrect/faulty parts. I suppose it could always be worse though!

 

Cheers.

 

Kayak.