I have a POPE Auto Wind Hose Reel with 20 m of hose to affix to an exterior wall of my house.
The "fixing plate" has 4 holes and I have been supplied with 4 x 12mm wall plug and screws.
I need advice on (1) whats size hole I need to drill in wall (it has been suggested I should drill a slightly smaller diameter hole for the plug.
and should i yes ant sealant or glue