Diesel Laundering

Back home diesel laundering is the illegal washing of dye from agri diesel to sell to motorists.  Tends to wreck engines as they use acid as part of the process and the final ignomy is the waste bi product which is dumped into local streams killing all life in his path.

By comparison my laundering is a more benign and should more correctly be called fuel polishing.  I've never had a problem with clogged diesel filters but reading all the horror stories, I reckoned it was only a matter of time.  So I drilled a big hole in my fuel tank to create an inspection hatch.  Made up a simple system with an electric fuel pump and filter mounted on a small piece of plywood.  Then I simply placed the intake and out let into the new hole, while making sure to position the intake at various low parts of the tank.  To my surprise, the system ran for several hours and no water or sludge was evident in the glass bowel of the filter.  So I fitted the WEMA inspection hatch and made a further access point in the plywood which originally covered the tank, for ease of future inspection.