I've just had a new water mains run into the house which has a 22mm connector. I need to attach a temporary tap to this as we have workmen that require access to water before we have our new heating system installed. Could you please let me know what parts I would need to do this?

What type of pipe or tubing... plastic or cooper tubing?

You have to let us know what type of pipe you have had installed. Based on that information, we can help you with installing a new hose valve.

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Milo