roknHS

I've had 4 of these hand crank pumps now.............3 of them are in the garbage. The seals leak like a seive. I have sent them back and received a replacement that leaked as bad as the one I sent back. If you want to pump gas with a hand crank pump, don't go with DUBRO. I am now using MPI hand crank pumps and having no problems. They don't pump as fast as the DUBRO but, the seals are tight and no leaking gas.

goirish

I use slimline on both Nitro and Gas,  never a problem.

karolh

Like you I had problems with all of 'other' brands of manual fuel pumps until I switched to using an MPI and no more problems. They all look alike but that's where the similiarity ends with the MPI.

Karol

Whistling Death

I have owned  two for about 5 years and I did have one develop a leak but that was after a few years. I was using them for my glow and then gas when I converted over. All in all I have been pleased with them.

earlwb

I like using the Sullivan hand crank pump. I had used one for around 20 years and I finally had to replace it a couple of years ago when I accidentally broke off a fuel fitting on it. I could have probably screwed in a large metal fitting, but what the heck, it served well for many years. So I got a new one to replace it with.

I remember those hand crank pumps leaking before, years ago, so I guess the underlying problem wasn't corrected.