A neighbour has just had a new condensing boiler fitted. What looks
like the condensate drain is tapped into a rainwater downpipe, which I'm
almost certain goes to a soakaway, because ours does.
Is that allowed? The neighbour wouldn't know, but he'd be keen to get
Well if we get a hard penetrating frost then like the stowaway,
the soakaway might freeze solid.
if the soakaway is at least 5 metres from the house then it is fine.
Plant some acid-loving shrubs in the location of the soakaway.
why not? ... most people put it into a rainwater gully and complain when it
freezes up ... mine goes to a horizontal 100m run under the suspended floor
that only serves the utility room sink ....so no freezing up problems...
The output of a condensing boiler is essentially pure water with traces
of iron and bit of CO2 dissolved in it. Not much different to rain (*).
Except in rain the iron content is mostly as magnetite from meteor dust.
Just how bad a thing is this? A friend of mine has just had this sort
of installation and the WB website says
"It is acceptable providing that the cast iron pipe will be regularly
flushed with water from another source" otherwise "corrosion and
premature failure of the cast iron pipe".
In her situation the condensate is fed to the cast iron stack of a
secondary (little used) bathroom.
How often should she flush the spare bog to satisfy the requirement of
"regularly flushed". After all a Preston Guild is regular.
Is failure likely in 12 days 12 months or 12 years?
You mean a run of 100mm pipe then.
And the connectors for those pipes have angles of 87.5 degrees for
a reason, it's to allow a lateral pipe to have the correct fall and
join a vertical stack without twisting the seal in the socket.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.