How to connect heat pump dryer to p trap barb?

[humblediy]

Hello

I'm trying to connect my heat-pump dryer to the p-trap barb (the p trap pipe has been installed by the house builder and I never use it):

I noticed there is no hole on the barb, should I use a "trap drill" to make the hole OR any drill size just fine

Thanks

[Noyade · Accepted solution]

Morning @humblediy 

I admit to seeing a lot of threads on this site talking about accessing this port for plumbing - but I never knew there was a special drill involved.

Live and learn.

So I Googled "Trap Drill" (drew a blank with Bunnings) and found a few plumbing sites selling them, but only one brave enough to publish a price...

For that price @humblediy  - I would humbly suggest the humble drill - just don't put too much pressure onto it.

But I guess if you did this for a living - the value would be there.

Playing under my sink - a 10mm bit seems to fit nicely - with room to spare.

See what others think.

Cheers.

[MitchellMc]

Welcome to the Bunnings Workshop community @humblediy. It's great to have you join us, and many thanks for your question about drilling out a trap spigot.

It's wonderful to see that the knowledgeable @Noyade has already sorted your question. Any drill is fine, and 10mm sounds about spot on. Just check the internal diameter of your spigot, as I've found they can differ slightly between brands.

Remember that you need a clamp to hold the pipe on.

Please let us know if you have any questions.

Mitchell

[humblediy]

Brilliant, thanks for the suggestion, yea, I found the price rather steep, especially for using it once only.

Thanks mate!

[humblediy]

Thanks mate! Appreciate your suggestion in using the clamp!