Polishicebreaker Posted December 14, 2020 Report Share Posted December 14, 2020 (edited) Good morning, I’m after a vent to cover my compost loo outlet. it’s around 80mm ( diameter round hole) and at a slight angle on the hull so needs to be flattish and rain proof? just wondering if anyone had any suggestions? many thanks. Edited December 14, 2020 by Polishicebreaker Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted December 14, 2020 Report Share Posted December 14, 2020 If it is covered, then it isn't a vent any more. ? A louvered vent would probably do what you want. Protection from rain, short stand off from the hull. If it is on the hull side, then it is going to be vuilnerable to damage and a potential hang-up risk in locks. Jen Link to comment Share on other sites More sharing options...
Alan de Enfield Posted December 14, 2020 Report Share Posted December 14, 2020 40 minutes ago, Polishicebreaker said: just wondering if anyone had any suggestions? Pipe it up thru the roof and use a 'standard' mushroom on top. 1 Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted December 14, 2020 Report Share Posted December 14, 2020 Replace it with a cassette loo! 2 Link to comment Share on other sites More sharing options...
OldGoat Posted December 14, 2020 Report Share Posted December 14, 2020 8 minutes ago, Alan de Enfield said: Pipe it up thru the roof and use a 'standard' mushroom on top. Whereas I agree with Jen above from the point of praticalities, that was not your question.... Thus the next comment is - (somehow) run the vent pipe up to the roof with a mishroom vent on top - my additional siggestion is if there's no extraction fan, then fit one either at the loo level (easier to run cables) or as I've done with my pumpout loos, fit the fan in the mushroom vebt / roof space. Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted December 14, 2020 Report Share Posted December 14, 2020 Back in the days when my boat had a composting loo, before I saw the light and went cassette, the evaporation vent pipe went to the roof. On this was fitted a spinning chimney cowl of this type to help it along. It worked OK, till a low tree branch knocked it in the cut. Stainless steel, so the magnet never found it. Jen Link to comment Share on other sites More sharing options...
Mike55 Posted December 14, 2020 Report Share Posted December 14, 2020 (edited) Try looking on ASAP chandlers. This may suit: https://www.asap-supplies.com/ Edited December 14, 2020 by Mike55 Link to comment Share on other sites More sharing options...
OldGoat Posted December 14, 2020 Report Share Posted December 14, 2020 This is what you need https://www.midlandchandlers.co.uk/search?query=mushroom+vent Mine's brass 'cos that's what were proper inthem days - but there are other and less expensive. Link to comment Share on other sites More sharing options...
David Mack Posted December 14, 2020 Report Share Posted December 14, 2020 Iif the vent has to be in the side of the hull why not just put a swan neck in the pipe so that the last bit of pipe before the skin fitting is sloping downwards? Link to comment Share on other sites More sharing options...
Polishicebreaker Posted December 18, 2020 Author Report Share Posted December 18, 2020 On 14/12/2020 at 12:05, Jen-in-Wellies said: Replace it with a cassette loo! Eh? Is this a joke Link to comment Share on other sites More sharing options...
Jen-in-Wellies Posted December 18, 2020 Report Share Posted December 18, 2020 Just now, Polishicebreaker said: Eh? Is this a joke Yes and no. Yes it was a joke, but it is also what I did with the composting bog on my boat. Link to comment Share on other sites More sharing options...
Polishicebreaker Posted December 18, 2020 Author Report Share Posted December 18, 2020 On 14/12/2020 at 12:58, Jen-in-Wellies said: Back in the days when my boat had a composting loo, before I saw the light and went cassette, the evaporation vent pipe went to the roof. On this was fitted a spinning chimney cowl of this type to help it along. It worked OK, till a low tree branch knocked it in the cut. Stainless steel, so the magnet never found it. Jen On 14/12/2020 at 12:18, OldGoat said: Whereas I agree with Jen above from the point of praticalities, that was not your question.... Thus the next comment is - (somehow) run the vent pipe up to the roof with a mishroom vent on top - my additional siggestion is if there's no extraction fan, then fit one either at the loo level (easier to run cables) or as I've done with my pumpout loos, fit the fan in the mushroom vebt / roof space. Thanks, could do that although already a hole in side of the boat so would prob make more sense to stick with side On 14/12/2020 at 12:18, OldGoat said: Whereas I agree with Jen above from the point of praticalities, that was not your question.... Thus the next comment is - (somehow) run the vent pipe up to the roof with a mishroom vent on top - my additional siggestion is if there's no extraction fan, then fit one either at the loo level (easier to run cables) or as I've done with my pumpout loos, fit the fan in the mushroom vebt / roof space. 1 minute ago, Jen-in-Wellies said: Yes and no. Yes it was a joke, but it is also what I did with the composting bog on my boat. Ah no worries! My neighbours have a cassette thing and I really feel for them. I guess that was the only option at one point or chuck it in the canal Link to comment Share on other sites More sharing options...
Polishicebreaker Posted December 18, 2020 Author Report Share Posted December 18, 2020 On 14/12/2020 at 12:58, Mike55 said: Try looking on ASAP chandlers. This may suit: https://www.asap-supplies.com/ Thanks, that might do it! Link to comment Share on other sites More sharing options...
Dr Bob Posted December 18, 2020 Report Share Posted December 18, 2020 ....or why not instead of venting to the outside, vent to the inside via a charcoal filter. Lots of peeps seem to be saying that reduces all smell to level where it doesnt smell. Looking at various reviews of peeps who have composting toilets, one recurring problem is that when vented to the outside and one goes into the bathroom and turns the extraction fan on, the bathroom extraction fan is usually far more powerful than the fan in the toilet so smells from the toilet are pulled into the bathroom. If you vent to a charcoal filter in the bathroom (or near the bathroom), the extraction fan will not pull the smells out. It is interesting to compare reviews of composting toilets that vent in the two different ways. Link to comment Share on other sites More sharing options...
ditchcrawler Posted December 18, 2020 Report Share Posted December 18, 2020 35 minutes ago, Dr Bob said: ....or why not instead of venting to the outside, vent to the inside via a charcoal filter. Lots of peeps seem to be saying that reduces all smell to level where it doesnt smell. Looking at various reviews of peeps who have composting toilets, one recurring problem is that when vented to the outside and one goes into the bathroom and turns the extraction fan on, the bathroom extraction fan is usually far more powerful than the fan in the toilet so smells from the toilet are pulled into the bathroom. If you vent to a charcoal filter in the bathroom (or near the bathroom), the extraction fan will not pull the smells out. It is interesting to compare reviews of composting toilets that vent in the two different ways. I thought they were supposed not to smell, that's whats so great about them Link to comment Share on other sites More sharing options...
Dr Bob Posted December 18, 2020 Report Share Posted December 18, 2020 2 minutes ago, ditchcrawler said: I thought they were supposed not to smell, that's whats so great about them They dont smell if you vent them properly. Link to comment Share on other sites More sharing options...
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