"Dave Plowman (News)" wrote in message
...


Using inhibitor on a leak free system is the cheapest way to prevent
corrosion. Filters are simply unnecessary. If they were a requirement
boiler makers would fit them.

Eaga insist on having a spiravent fitted to the systems they pay for.

I googled for info but its very limited.
The plumber said there was a drain on it to remove the dirt but to ignore it
as it would never get dirty as long as the inhibitor wasn't drained.
I wanted to find out how much they were as they are supposed to be extremely
good at removing air.