Thanks – great explanation. But wondering how you create and manage the size and shape of the cavity. With the two vertical holes I guess it’s a hot water drill that also reams the hole to stop it freezing. Not so easy with a cavity that connects the two holes, but I’m sure you’ve figured it out! cheers..Peter.
Excellent! Clear, accurate AND intersying!
Thanks – great explanation. But wondering how you create and manage the size and shape of the cavity. With the two vertical holes I guess it’s a hot water drill that also reams the hole to stop it freezing. Not so easy with a cavity that connects the two holes, but I’m sure you’ve figured it out! cheers..Peter.
310 Bar? That would fill my bath in no time 🙂