Increasing the hot pressure on a low pressure system:
If you have a low-pressure hot water system and you do not have a wetback connected from your cylinder to a fireplace. You are in a position where you can remove the header tank and after placing a pressure-reducing valve on the mains cold feed line that used to go into your header tank and connecting up all lines heading out of the tank to the outlet side of the pressure reducing valve install a medium relief valve onto the end of the hot exhaust line. This will make a closed loop medium hot water pressure system and will immediately give you more hot water at your showerhead and at all other tap outlets.
Roof leaks in slate:
For a slate repair such as a loose or fallen out slate you will need a specialist tool called a slate knife and a strip of copper metal to steady the new slate instead of using nails up underneath where you cannot reach.
The slate knife is used to easily remove the nails up under the existing topmost slates. Once these are removed the broken slate will fall out all the way. Nail your copper strip to hang down below the new slate by nailing in-between the two exposed slates under the new slate. Then simply turn the copper up and over the bottom of the slate so placed and cut off the excess copper over the top of the end of the slate tile.