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Old 21 August 2014, 08:58   #1
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Cleaning under SIB Ali floor

Bit of advice needed - what do you guys do re cleaning under the Ali floor where sand and other crap gathers? Do you deflate, remove floor and clean / dry, re assemble and inflate etc (sort of defeats my plan of keeping it on a trailer to avoid inflating / deflating etc) or just deflate the keel and try and flush through via the hole in the front floor panel?? The second idea was my plan with the boat on a slope to drain but will it dry? noticed under floor is still wet from use over 3 weeks ago. Have concerns how long it will take to dry and if very long period of time will it cause any probs. Thanks

Also is it normal to loose air in tubes? Prob lost 10 - 15% air in all tubes over a 3 week period. Appreciate any comments. Thanks
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Old 21 August 2014, 09:27   #2
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If you're getting loads of shingle and stuff in your boat then it's worth taking it apart to clean properly. I wouldn't expect this to be needed every outing, but you'll need to make a judgement call on it. I wouldn't worry about whether or not it dries under the deck, but a thorough cleaning and drying occasionally would probably be worth the time, if for nothing else just to check the condition of the fabric at the edges of the floor.

Ideally tubes will hold pressure indefinitely, and it's only normal to lose air if the tubes have got holes in, or if the valves leak. Having said that the amount of leakage you're describing isn't uncommon, especially in older boats, and isn't normally any cause for concern.
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Old 21 August 2014, 09:34   #3
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Cleaning under SIB Ali floor

We leave ours inflated on a launching trolley all season. It gets a good hose down after a weekend/weeks use on the trolley with tubes and keel inflated to get as much sand out as we can. Let water drain out of bung with bows elevated although always remains wet under the floor. Gets a good clean and dried before deflating and stored in warm garage over winter.


Not noticed any loss in pressure but always leave tubes at half pressure (0.15 bar) and keel deflated when not in use/stored and boat covered.
Pressure readings will vary dependant on ambient temperature though.
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Old 21 August 2014, 10:07   #4
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Many thanks guys for your thoughts on this one - greatly appreciated. I think I will follow your suggested routine and give it a good flush through after each use then take apart and do a proper clean / dry before winter storage. Re air loss, boat is only just over 1 year old but it is a Seapro from Bill Higham so prob explains the issue. Oddly all tubes seem to loose same amount of pressure so prob down to Seapro using not the best quality valves during manufacture. Not an issue for day to day use but annoying as I will have to keep topping it up every month whilst on trailer. Cheers
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Old 21 August 2014, 15:46   #5
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I do my best to keep sand out of my boat, but it gets into it enough when beach launching. I just hose as much as possible out of the elephant trunk, but most smaller boats don't have that option. It gets sand under the floor and about once a year I take the boat apart, typically to fabricate something, and clean it at that time.

Since I store my boat with zero psi in it, as in half deflated, I have never noticed a loss of air. Most likely it is the valves leaking.
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Old 21 August 2014, 15:53   #6
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Deflating

Air temp is cooler at the moment so you could be noticing the deflation related to that, as opposed to the very warm weather previously which would expand the air. Just a thought.
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Old 21 August 2014, 15:54   #7
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Cheers Peter.
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Old 21 August 2014, 16:07   #8
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Did think that could be the case but had this issue throughout the earlier summer months when temp was more constant. Def more noticeable this time as lost much more air - just come back from 10 days away to find the boat very very soft so drop in temp has made it worse. Difficult to tell I suppose whether it's just outside temp or valves but I'm sure it's leaking some air through the valves.
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Old 21 August 2014, 16:36   #9
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Hi i keep my rib ,and the honwave sib i used to have in a garage so to stop tubes over inflating when temp rises always let a bit of air out , only take a couple of pumps to get back to pressure, but piece of mind,
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Old 21 August 2014, 17:27   #10
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Thanks Trevor. I also store in garage to minimise temp changes and also careful not to over inflate just in case. Prob will deflate and roll up over winter to avoid probs.

Seriously starting to consider getting a Rib so can leave it on trailer all year round but limited due to garage only being 5m long. Ideally would like a 4.8m rib but would need to knock a hole through the wall for the trailer drawer bar!! :-) :-)
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