Lolz.mixed reviews on the Lecky heater.
Most did change the flimsy wire for more sturdy stuff.
If the van catches fire it'll be nice and warm
I shall see tomorrow if my super Mario type copper plumbing has cured my water leak.
+1 on the flush back and forth to dislodge inner engine water way nasties.
I have in the past dissolved a dishwasher tablet and put it in the header tank.
Run for a few days.
Then drain down/flush and refill with coolant.
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