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8:18 pm
Friday,8 July, 2011
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Hello There, after living on our boat for just over two months now we remembered someone saying that it was a good idea to flush out the waste tank while the tank is being emptied by fresh water being put into tank. We are just wondering how this is done. Our waste tank is under our bed and there is a white disc. We remember that the pumpout needs to have started so that it doesn’t overflow but its the part of getting fresh water into the tank while its empying thats puzzling us. Sorry but we’re new to this so would appreciate some help. Many Thanks
Retirees
9:19 pm
Friday,19 February, 2010
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Some boats have a rinse water inlet on the gunwale near the waste outlet. Once the waste has started pumping out, a hose can be put into the inlet to flush the tank out while the tank is being emptied. If you have a dump through toilet rather than a macerator, the rinse water hose can be jammed under the flap at the base of the toilet bowl to introduce water into the holding tank while the waste is being pumped out. If your boat has no rinse water point and has a macerator toilet, the only way to rinse the tank is to put the rinse hose into the waste outlet once the waste has been pumped out, then pump out the rinse water with the pump out hose again.
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11:53 am
Thursday,12 January, 2012
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retirees said
Retirees
Your pump out loo tank must have a breather pipe to allow air in whilst tank is pumped out. This is usually a similar diameter to the pump out pipe and sited adjacent to it with an open fitting. If you squirt water down this breather fitting, it will flush the tank whilst extracting the poop.
Regards – Richard –
Ecky Thump
2:24 pm
Friday,8 July, 2011
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Thankyou both will try that next time we need to empty.
Regards,
Alec and Mo
9:28 am
Tuesday,7 February, 2012
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You wont do much good adding water until the tank has emptied. You should then turn off the pump, add water, rock the boat to swill the water round then restart the pump to finish the pump out.
We get water into our tank from our flushing toilet by filling up the toilet bowl, we use the shower head, then flushing through.
No smell, no contact with the contents.
1:51 pm
Friday,11 March, 2011
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richardhula said
Your pump out loo tank must have a breather pipe to allow air in whilst tank is pumped out. This is usually a similar diameter to the pump out pipe and sited adjacent to it with an open fitting. If you squirt water down this breather fitting, it will flush the tank whilst extracting the poop.
Sorry Richard you are making an assumption that all boats are built like yours. Many modern boats have odour filters fitted in the breather line. Reverse flushing such a system would have catastrophic results for the filter element and would in effect block the breather.
I also agree with Paul Newby, there is no point in adding flushing water (via the correct method) until the tank is empty.
If no rinse fitting has been installed by the builder and you are not sure if the breather has a filter or not add flushing water via the toilet as said above and also by rinsing down the pump-out fitting.
Regards
liveaboard
3:18 pm
Thursday,12 January, 2012
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Liveaboard said
richardhula said
Your pump out loo tank must have a breather pipe to allow air in whilst tank is pumped out. This is usually a similar diameter to the pump out pipe and sited adjacent to it with an open fitting. If you squirt water down this breather fitting, it will flush the tank whilst extracting the poop.
Sorry Richard you are making an assumption that all boats are built like yours. Many modern boats have odour filters fitted in the breather line. Reverse flushing such a system would have catastrophic results for the filter element and would in effect block the breather.
I also agree with Paul Newby, there is no point in adding flushing water (via the correct method) until the tank is empty.
If no rinse fitting has been installed by the builder and you are not sure if the breather has a filter or not add flushing water via the toilet as said above and also by rinsing down the pump-out fitting.
Regards
liveaboard
Fair point although I did say usually not always. The breather pipe ought to be of substantial bore though given the extraction power of some pumps.
On the same subject a blocked odour filter could cause a partial vacuum in the tank when emptying it and is not a wise choice IMHO.
My last boat had one. Although I just had a manual bilge type pump to empty it (sea-going craft) even with a brand new filter/fitting the 15mm bore breather pipe couldn’t keep up with the rate I was pumping and the tank used to creak as it tried to shrink
Regards – Richard –
Ecky Thump
12:53 pm
Friday,11 March, 2011
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Richard, I absolutely agree that the breather bore should be substantial, IMO the same size as the pump-out fitting,usually 38mm or 1½” .
I beleive the most commonly used filters on narrowboats are the following:-
http://www.vetus.com/waste-wat…..-hose.html
http://www.leesan.com/index.as…..r%20Filter
(couldn’t get the linky thing to work) Which are for 38mm pipe and fittings.
Regards
Liveaboard
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