The upgradeable Blair VIP (uBVIP) - SuSanA
The upgradeable Blair VIP (uBVIP) - SuSanA
The upgradeable Blair VIP (uBVIP) - SuSanA
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Even simple grass structures can be fitted with<br />
vent pipes.<br />
In this case the vent hole is inside the structure. Fly and<br />
odour control will take place if a screened vent pipe is<br />
fitted to a spiral structure fitted with a roof.