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Heads - access to Lavac pump

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GlennG View Drop Down
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Joined: 18 Jul 2009
Location: Chatham - B29
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Topic: Heads - access to Lavac pump
    Posted: 27 Jul 2010 at 2:42pm
Have a '78 Contessa with the fibreglass moulding for the heads area.  A Lavac toilet's installed.

How on earth does one access the pump?  It's in the 'wall' and I just can't see how to get to it.  There's a shelving unit above,  but there's no obvious screws here.

There's no reason for getting to it other than it will need a service.  I'm damned if I want it to break when I'm on a trip!


TIA,
Glenn
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davidmacdonald View Drop Down
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Post Options Post Options   Quote davidmacdonald Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jul 2010 at 7:30pm
I've had to do this more times than I would like!

On Afrita, built in '79 and with the fibreglass moulding, the shelving unit does unscrew (around 8 screws in the teak trim around the edge - but if yours are not visible I can't help, though they may be hidden behind wooden plugs) and the whole unit then pulls out.

The pump is then easily accessible, and is held in with machine screws through the moulding.  The difficult part is getting the pipes disconnected from the pump as there is little space to wiggle them and they are probably not that flexible.

Refitting with new pipes is also a pain, when we did it I found holding them in boiling water and then pre-shaping them with a wooden tapered bung helped.
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Post Options Post Options   Quote GlennG Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jul 2010 at 10:15pm
Hmm,  must look much closer at the 'shelving' unit.  One of those things that you don't look too closely at until you need to get the job done.

Would you think that it's possible to replace the valves & diaphragm in-situ,  or is it a fight the hoses until your knuckles bleed!

I find that most hoses respond to the kettle very well.  I suppose it may be possible to work out some form of funnel & hose arrangement to direct boiling water at the hoses.

I suppose this is another one of those jobs where you can see the thing you're fixing,  or touch it,  but not both and certainly not with both hands!
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Post Options Post Options   Quote davidmacdonald Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jul 2010 at 6:40pm
Originally posted by GlennG


Would you think that it's possible to replace the valves & diaphragm in-situ,  or is it a fight the hoses until your knuckles bleed!

I think that would theoretically be possible as IIRC all can be the access is through the back, but it would be hard to clear the er "gunk" out without removing the pump and putting it in a bucket.
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