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Old 20 July 2017, 12:45   #1
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Time to install an automatic bilge pump

Okay, at lunchtime today I pumped as much water as I could out of the hull of the RIB (using a hand opperated bilge pump), waited for the tide to come up to the slipway and at 5:30 I got the RIB on it's trailer. I then drained 16 liters of water from the hull (which weighted 18kg). I accept that its the shape of the hull and position of the hand pump but I feel an automatic bilge pump is needed. Something like this looks like it should do the job:
Rule 500 Computerised Auto Bilge Pump 12V | Force 4 Chandlery

I need it to pump up and over the transom so no more than 1m for head which seems fine. that one pumps 28l per minute but I wonder if I should go for the 66l/per min version to be safe Rule 1100 Computerised Auto Bilge Pump 12V | Force 4 Chandlery

Now, I would be worried that if I had one of these and left it operating when the boat is moored for a week or two without use it may end up running the battery flat. I guess the solution is some sort of solar charger.

I know nothing about solar chargers so are there any solutions that are plug and play?

thanks
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Old 20 July 2017, 14:13   #2
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I've just replaced my rule 500 pump after 9 years with a similar pump. To my cost, when putting in new one, found it wasn't the pump faulty but an intermittently faulty manual switch on the console.

Your chosen pump will be fine, no need to go for the increased volume.

Bear in mind, the only problem I had was that the hose connected to it has a mind of its own. It tends to take its own shape and kinks, not necessarily in the way you want it to. It then makes it difficult to secure the pump flat to the deck in the upright position. You can stick the strainer to the deck, but I found that made it impossible to reach the pump in order to clean it. Secured it down with cable ties in the end.
The other examples of rule pumps come with two types of hose outlet spigots, making it better to find the right orientation of the hose. Useful.
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Old 20 July 2017, 14:15   #3
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This was the one with the spigots

Rule Mate 500 Submersible Bilge Pump 12v - TCS Chandlery Ltd

Also, if the pump is not stuck down or cable tied, it will float to the surface which obviously defeats its objective.
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Old 20 July 2017, 14:55   #4
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Thank you, I'm going to have to stick it down or wedge it somehow, I have a plan.... famous last words. Now, all I need to do is find a suitable solar charger to keep the battery going.

Whilst out messing with the boat just now, I found air 4 leaks also, one on each of the 5 tubes. That's good news in a perverse way as now I either need to fix them myself or find an expert, personally I'd like to find somebody who knows what they are doing.

Does anyone know of a good tube patcher near Lymington?
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Old 20 July 2017, 18:07   #5
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Scott at RibRepair is just up the road: Rib Repair – Emergency Repairs & General Servicing .

He did some good work on my tubes when I first bought the Ribtec that's holding strong after 4-5 years.
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Old 24 July 2017, 04:18   #6
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I've spoken to Scott and he is going to take a look at the tubes and offer advice on fitting an automatic bilge pump.

Thanks for the help
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Old 24 July 2017, 08:17   #7
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Excellent - I was very happy with his work on my boat (and I went to him following other recommendations on here!), so hopefully will work out well for you too.
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Old 24 July 2017, 08:27   #8
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Quote:
Originally Posted by BigE View Post
Okay, at lunchtime today I pumped as much water as I could out of the hull of the RIB (using a hand opperated bilge pump), waited for the tide to come up to the slipway and at 5:30 I got the RIB on it's trailer. I then drained 16 liters of water from the hull (which weighted 18kg). I accept that its the shape of the hull and position of the hand pump but I feel an automatic bilge pump is needed. Something like this looks like it should do the job:
Rule 500 Computerised Auto Bilge Pump 12V | Force 4 Chandlery

I need it to pump up and over the transom so no more than 1m for head which seems fine. that one pumps 28l per minute but I wonder if I should go for the 66l/per min version to be safe Rule 1100 Computerised Auto Bilge Pump 12V | Force 4 Chandlery
When you say you


Now, I would be worried that if I had one of these and left it operating when the boat is moored for a week or two without use it may end up running the battery flat. I guess the solution is some sort of solar charger.

I know nothing about solar chargers so are there any solutions that are plug and play?

thanks
Drained from the Hull or did you mean Deck??
A Jiggle syphon Pipe works well on water as well as Fuel by the way.

An auto bilge won't be opperating much unless it's torrential rain over a long period...I've never had a problem leaving mine on ...even in Scotland
(I have TWO Whale auto pumps in the Bilge well on deck.. Single 12v Battery on a 7m) for a couple of weeks....and if you're a regular user/charger with a decent Battery should not present any problem.



If you're still concerned a 12v Power Plant/Carstarter will surface to get Her started so you can charge the Battery in the conventional way on a run....and be ALOT LESS hassle/expence than buying and then rigging/maintaining a Sloar Charger...which take up room and are pretty Crap anyway...unless you want to dig deep!
Of course the other option is to use/purchase a decent cover.
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Old 24 July 2017, 08:45   #9
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Nope, I meant the hull.
Water gets in from somewhere, I think the front hatch and then runs down the length of the boat and collects at the sturn. The only way to get it out is to open the drain plug on the transom and it needs to be out of the water for that. To be fair the boat has been on my driveway since last week and with all this rain I've had to drain out a large amount of water.
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Old 24 July 2017, 08:50   #10
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Nope, I meant the hull.
Water gets in from somewhere, I think the front hatch and then runs down the length of the boat and collects at the sturn. The only way to get it out is to open the drain plug on the transom and it needs to be out of the water for that. To be fair the boat has been on my driveway since last week and with all this rain I've had to drain out a large amount of water.
Well THAT should be you're main priority....stopping the ingress!

There is something pretty wrong if it's letting in that amount,which in turn will effect performance and in time Hull integrity...and may be a quick fix
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