The current plan is to get some hard foam, cut it to fit around the return manifold as a raft and cover it in strong aluminium foil, fixing it with some food grade epoxy.
The arms of the manifold are dry-fit and can be angled to suit the height of the mash.
Oh, the manifold will be given a good soak in citric acid before using again, it looks manky as I've not used it in a few years!
Anyone done similar, does it work?!?
Cheers,
Jamie