Turned out to be a bit of a marathon job finishing off the mini-WASP observatory flooring.  On the top you can see the Pulsar Observatories’ cushioned flooring (very nice!).  Directly underneath the cushioned floor is the Pulsar Observatories supplied waterproof membrane.  Directly underneath the waterproof membrane is a carpet of welded wire mesh to prevent possible ingress of rodents (who like to live under decking apparently – certainly I know grass snakes do – so maybe mice don’t 🙂 )  And finally underneath the wire mesh is a layer of pond liner which is sealed (using white silicone sealant) to the underside of the dome).  Might all be a bit of overkill but hopefully I only have to do it once.

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