Drilling a 24 inch hole for outside tap

[Brinyan]

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

[miniman]

Brinyan said:

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

A couple of hours to drill a hole?

[Lotobear]

miniman said:

Brinyan said:

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

A couple of hours to drill a hole?

...potentially more if you are unlucky and hit a river cobble in the middle

[119]

Just get these.

https://www.toolstation.com/sds-plus-drill-bit-set...

Start with the smaller one and finish with the bigger one, which should allow a 22mm pipe sleeve to go in and then your 15mm pipe inside that.

[Little Lofty]

If its sandstone is pretty soft and easy to drill through. If you don’t have a pilot drill so that you can go from both sides, just make sure you take off the hammer action when you nearly through, it will help prevent the stone bursting on the outside.

[bigmowley]

119 said:

Just get these.

https://www.toolstation.com/sds-plus-drill-bit-set...

Start with the smaller one and finish with the bigger one, which should allow a 22mm pipe sleeve to go in and then your 15mm pipe inside that.

Drilling into stonework with as SDS drill is best done without pilot holes. SDS drills are designed to drill and chisel out as they go. An SDS bit in a pilot hole will chisel into the pilot hole and get stuck, jump about and generally batter the users wrists. Just drill the right sized hole in one operation, whatever the size. It’s very different to drilling timber or soft materials.

[DonkeyApple]

If it were me, I'd follow the advice re drilling a larger hole and sleeving it as well as using the sleeve to push the drill bit back out when done. Oh, and the advice about not breaking one's wrist. I think that's quite useful advice also.

I'd also go from the outside to minimise mess and at a slight upwards angle just so that when the pipe freezes and splits in winter as I'd forgotten to turn the indoors valve that I'd specifically fitted to remove this risk, the water goes out not in.

[Baroque attacks]

Just try not to blow the arse out of it as you break through!

[gfreeman]

A former house of mine had similar construction and I needed to do a similar job.

Unfortunately this was before the abundance of sds tools available for the diyers. I used a 25mm galvanised steel pipe and a lump hammer - just bashed my way through. There is a knack to it - you don’t just beat the hell out of it - you hit, jiggle, turn, hit.

Went in on a corner joint and it was surprisingly easy. Was shown this method by a Groundworks contractor on a large construction site going through rubble walls with a scaffold tube for 2 inch holes.

[ATG]

Has the o/p described what type of stone has been used to build the wall? Bit of difference between sandstone and granite, for example.

[Jordie Barretts sock]

It may not be quite the trauma I thought it was. Inside is plasterboard covering the rough stone.



Outside is this...



The utility is off my garage, which I think on closer inspection has been built on 'in the style' of the barn conversion.

Eta, that flue you can see on the outside is for the boiler that you can just make out to the right of rhe inside tap. I'm guessing it isn't going to be two feet thick if a flue has gone through it?

Edited by Jordie Barretts sock on Sunday 26th May 14:00

[Brinyan]

Lotobear said:

miniman said:

Brinyan said:

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

A couple of hours to drill a hole?

...potentially more if you are unlucky and hit a river cobble in the middle

No, not to drill a hole - to install an outside tap. Drilling through a stone wall 2ft thick isn’t always straightforward . I’ve done it. I’d allow a couple of hours for drilling, fitting the tap, connecting to supply pipe etc. Even then, could take much longer & worth more to someone who does it for their living than earning a beer from it.

[shtu]

gazapc said:

Drilled several similar holes through our thick stone walls last year. Main challenge I found was getting the angle of the drill level. Otherwise you end up going off course. Not sure of the best solution other than be careful.

If you can't eyeball it, a small spirit level against the bit, get your position right, drill a bit, check, etc.

Once you're a little way through the bit will follow the angle set early in the drilling.

[sherman]

Punch a hole through the plaster board with a hammer to see how much of a void there is behind.
No point in drilling platerboard- fresh air - stone when you can just drill the stone which is actually only 1 ft thick.

[Jordie Barretts sock]

Yes, this is what I'm thinking.

[motco]

miniman said:

Brinyan said:

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

A couple of hours to drill a hole?

My daughter lives in a house built in the 1950s and it is constructed from Wimpey No-fines methods. This is like a Aero Chocolate Bar where the holes in the chocolate bar are represented by hard 10 to 20mm pebbles and the chocolate is substituted by the air spaces between the pebbles all cast in situ with cement, with no sand or other 'fines' in it, to bond the pebbles to each other but leave air spaces between. The pebbles are flint-like and very hard and the wall is 12" - 13" with no cavity. It took most of the afternoon to drill a 110mm diameter hole for an extractor duct from a cooker hood. A rented drilling machine and a rented diamond drill/core bit. The aggregate is really hard and it causes smaller twist drills with tungsten tips to veer wildly off course. Standard rawl plugs are useless.

[Fatboy]

motco said:

miniman said:

Brinyan said:

Geffg said:

miniman said:

At the point your hiring a drill and buying a bit, isn’t the best approach a post on your local Facebook group seeking a plumber who will do it on his way home for a good drink?

My mrs shows me posts like that, people asking for people to do a “ little job “ for them for beer money.
Like most tradesmen we all just sit around waiting for someone to ask us to a job because we love our wok so much we all work for free.
But anyway, as has been said, a good sds drill and good quality drill bits.

Absolutely, a couple of hours work. Unfortunately, in the world we live in, I’d want more than beer money to do it, unless for a mate.

A couple of hours to drill a hole?

My daughter lives in a house built in the 1950s and it is constructed from Wimpey No-fines methods. This is like a Aero Chocolate Bar where the holes in the chocolate bar are represented by hard 10 to 20mm pebbles and the chocolate is substituted by the air spaces between the pebbles all cast in situ with cement, with no sand or other 'fines' in it, to bond the pebbles to each other but leave air spaces between. The pebbles are flint-like and very hard and the wall is 12" - 13" with no cavity. It took most of the afternoon to drill a 110mm diameter hole for an extractor duct from a cooker hood. A rented drilling machine and a rented diamond drill/core bit. The aggregate is really hard and it causes smaller twist drills with tungsten tips to veer wildly off course. Standard rawl plugs are useless.

My last place was random rubblestone, about 400 to 600mm thick (varied a fair bit!), when drilling for pipes or cables, I would drill a 22mm hole with a 1m long SDS bit, and then feed a bit of 20mm pvc conduit in as I pulled the drill bit out (as mentioned above, stones on the inside often move and block the hole) for easy future pipe/cable replacement...

It sometimes only took 5 minutes to drill the hole of it was just limestone, but occasionally I'd hit something a lot harder and it took me well over 3 batteries on my 18v SDS to drill the hole for the bt phone cable! While core drilling for the cooker extractor vent, I hit a piece of flint shaped like a bloody axe head, that took the teeth of the core bit!!!! So yes, I can honestly see a tradesman allowing 2 hours to drill the hole...