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Posted: Mon Aug 29, 2016 5:17 pm
by franky
fitting replacement ductile iron frame, it overhangs chamber by approx 5 mm on inner edge on each long side but well onto brick top and bottom - is this acceptable - height is good
Posted: Mon Aug 29, 2016 6:52 pm
by dig dug dan
Fine for domestic foot traffic, not so for vehicles
Posted: Tue Aug 30, 2016 9:24 am
by franky
thank you - will shift top course over 15 mm then fit frame when cured - is there anything special to bear in mind when doing this
Posted: Tue Aug 30, 2016 10:29 am
by seanandruby
How deep is the bed goig to be? If it's to deep you'll need to regulate the brickwork, aim for 10/15ml. Id' use building sand and cement 3/1 mix. Bed it on straight away and tap down to height.
Posted: Tue Aug 30, 2016 12:29 pm
by franky
thank you - have now regulated brickwork and bed is 15mm - in for a cuppa - will use mix you suggest with a dollop of SBR