tortron Posted May 25, 2014 Share Posted May 25, 2014 Say i mount a water reservoir in my boot. Is a hand pumped washer pump up to the task of pulling it along circa 3m of tube? I think a check valve may be useful here to you dont have to pump it a million times? I have a cool old glass Trico reservoir, hand pump, and the retro nozzles (going to mount them where my visor centre goes, save drilling more holes) Want to use it, but its too big and looks silly in my engine bay i.e it probably holds a little over 1L and my engine is sub 1L Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted May 25, 2014 Share Posted May 25, 2014 Do you specifically want a hand pump? I have an electric one here u could have Quote Link to comment Share on other sites More sharing options...
Nominal Posted May 25, 2014 Share Posted May 25, 2014 The usual Morris ones have a check valve in the reservoir fitting I think. Mine is a bit poked, so I have to pressurise it with the garden hose before each WOF. No reason why it wouldn't work from the boot, it's mainly about the head (height difference) between pump and reservoir I would expect. Quote Link to comment Share on other sites More sharing options...
tortron Posted May 25, 2014 Author Share Posted May 25, 2014 Do you specifically want a hand pump? I have an electric one here u could have Yea, its neat. Tho i may consider a hidden electric one in the future The usual Morris ones have a check valve in the reservoir fitting I think. Mine is a bit poked, so I have to pressurise it with the garden hose before each WOF. No reason why it wouldn't work from the boot, it's mainly about the head (height difference) between pump and reservoir I would expect. So it does, just went and blew on both ends of the bottle fitting and it only goes 1 way. Good point, it will probably be the same if not slightly lower than it would be in the engine bay. I think that any major loss would probably be from the tubing walls flexing. Will have to go get several meters of tubing and mock it up i suppose Quote Link to comment Share on other sites More sharing options...
ajg193 Posted May 25, 2014 Share Posted May 25, 2014 The friction of the tubing will cause appreciable pressure loss. Just use something with a fairly large diameter to decrease friction. Quote Link to comment Share on other sites More sharing options...
Nominal Posted May 25, 2014 Share Posted May 25, 2014 The long tubing will be on the sucky side. Bigger will help though, I agree. Quote Link to comment Share on other sites More sharing options...
cubastreet Posted June 6, 2014 Share Posted June 6, 2014 Here's a list of resistance of tubes used as beer keg line: 3/16″ ID vinyl tubing = 3 psi/ft 1/4″ ID vinyl tubing = 0.85 psi/ft 3/16″ ID Polyethylene tubing = 2.2 psi/ft 1/4″ ID Polyethylene tubing = 0.5 psi/ft 3/8″ OD Stainless tubing = 0.2 psi/ft 5/16″ OD Stainless tubing = 0.5 psi/ft 1/4″ OD Stainless tubing = 2 psi/ft Quote Link to comment Share on other sites More sharing options...
ajg193 Posted June 6, 2014 Share Posted June 6, 2014 In metric: 5 mm ID vinyl tubing = 66 kPa/m 6 mm ID vinyl tubing = 19 kPa/m 5 mm ID Polyethylene tubing = 50 kPa/m 6 mm ID Polyethylene tubing = 11 kPa/m 9.5 mm OD Stainless tubing = 4.5 kPa/m 8 mm OD Stainless tubing = 11 kPa/m 6 mm OD Stainless tubing = 46 kPa/m (Heaps easier to imagine) Quote Link to comment Share on other sites More sharing options...
flyingbrick Posted June 6, 2014 Share Posted June 6, 2014 This does not matter at all now as tortron left his hand pump at home. Edit. Lol. Hand pumps make for awkward airport luggage searches Quote Link to comment Share on other sites More sharing options...
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