You can get a hand-operated siphoning pump specially made for the job from Draper, it was something like £4.99 and a total rip-off at the price. The "lift pump" couldn't even get water out of a teacup.
Draper also sell these, I bought one and it was utter rubbish. I tested it on a cup of tea, and it failed miserably.
even with a full length of pipe, rammed in as far as it will go, only the bottom inch or so is wet, so i recon that its fuel that is in the filler kneck..
Bastard! Giving fuel to hire companies is not good.. :(
I suspect that a teacup doesn't hold sufficient liquid to maintain the vacuum or whatever up to the point at which gravity takes over and sucks out the contents of the vessel.
I used one of these to empty the tank of one RRC into another. I had to remove the filler neck of the source tank because of the anti-syphon mesh. It was so successful that I sucked the tank dry and had to replace some of the petrol.
The only things I would say is that you must replace the short length of (stiff) lift hose with a much longer length of poly hose that will reach right into the depths of the tank. Also I put the rear wheels of the source vehicle on ramps to get sufficient height for the syphon action to work.
Richard
No, that's not a problem. The issue was that the lift pump which is needed to start the siphoning action just didn't lift, it just squeaked like a dog's squeaky toy. It was probably knackered, but it looked very poorly made so I doubt it was the only one.
Or there is some crafty thing blocking the pipe as it exits the filler neck. Getting tubes down the inside of other tubes is not as simple as it first appears. You need to take into account the curves in the outer tube and the natural curves of the pipe you are inserting, along with any effects that having the inner pipe along the curves of the outer one will have. Using the natural curves and twisting at the right point of entry can make the difference between getting stuck or not.
Agreed, no drain plug? or accessable return feed (or even the main feed bodge a bit of wire to the pump to make it run more than the few seconds they normally do at switch on.
Mine, from CPC, works not that I've used it often but it did work. Wouldn't want to pay what they are now asking though.
Fair enough.
What I didn't say in my original contribution was that I couldn't achieve sufficient height to get the syphon to run. This was because the RRs were side by side on my drive and, even though the source RR was on ramps at the back, the lift tube was higher than the delivery tube. Thus I had to use the priming bulb to transfer best part of 3/4 of a full tank from one RR to the other. I reckon that each bulb full dragged perhaps 3 or 4 times it's volume through before the syphon collapsed. It was hard work but easier and much faster than syphoning into a 1 gallon can and then emptying that into the destination tank.
Richard
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