On 20/02/2021 15:33, Andrew wrote:
On 20/02/2021 13:35, John J wrote:
Farm owner said he'd never had a boiler repair by bicycle pump before.
Oh and the bees were flying in and out of the hives.

But the crap that you blew back into the tank could cause
another blockage. Biodiesel is causing a lot of grief to some farmers
because it is blocking filters with ??algae. Is heating oil having
anything added to it ?.

Must be serious, even Scottish farmers are affected, and we know
how cold it is up there

https://www.thescottishfarmer.co.uk/...-fuel-filters/

There are a number of off-the-shelf products to reduce or eliminate
diesel bug. It's particularly common in boats.