Wind screen washer pump

[robedney]

What are the odds that the 1967 push button pump works? Tried it and then found that the check valve is missing. I need to find a check valve and probably flush the lines, and I'd like to keep it original, but if the pumps don't last I'll just install and electric pump and reservoir.

[bmcecosse]

They last really well - as far as I know mine is original - so 47 years old now and still works well. My non-return valve is in the pick-up pipe in the bottle. There is also a little filter - it can become clogged with sludge - beware - the bottle may contain Legionella (water been festering in warm environment) - so handle with care........

[Declan_Burns]

I replaced the wash bottle on mine last year. Had to bin the brand new check valve as it didn't work and re-fitted the original valve. Those original pumps last a long time. There's a better chance that the old pump works than a new repro-rubbish replacement.
Regards
Declan