22mm Copper pipe, hard to find?

Hecklar

Hey guys,

I'm wondering if anyone can suggest a supplier for 22mm copper pipe, I've called a couple of builders merchants and they only stock imperial sizes (3/4 inch is slightly smaller obviously).

I've removed an internal wall that the water tank used to sit above and I'm looking to relocate the tank to a more suitable location (also switching the tank out, as its a manky aul steel one). The pipework/fittings are 22mm and I'd like to reroute it to a more convenient location without disturbing too much of the original stuff.

How come this isn't stocked in a lot of places? Any suggestions in Dublin I could pick up some handy enough?

Cheers.

aujopimur

Hevac are stockists.

Sleeper12

Why not just reduce it from 22mil to 3/4 inch. Buying a handful of reducers seems less hassle than buying 22mil pipe & fitting

K.Flyer

Arcon, Herberton Rd, Dublin 12, (got some there myself recently)
Hevac, Naas Rd, Dublin 12 should have some.
BSS, South Circular Rd, Dublin 8 should have it also.
You can also buy 22 to 3/4 straight connectors in solder and compression fittings and work from them in imperial if you prefer. Most plumbing suppliers should have them.

Hecklar

Thanks for the tips guys.

I thought about reducing it but ideally I want to make it as pain free as possible and leave much of the old stuff alone. The tank only needs to move about 1.5m so it works out handier for me to just add in a couple of bends and a small section of pipe. I'll try the places suggested and see if I can get cracking. thanks.

Tom44

Hecklar wrote: »

Thanks for the tips guys.

I thought about reducing it but ideally I want to make it as pain free as possible and leave much of the old stuff alone. The tank only needs to move about 1.5m so it works out handier for me to just add in a couple of bends and a small section of pipe. I'll try the places suggested and see if I can get cracking. thanks.

Why ?

As previously suggested, we use 22mm straight compressions ( readily available) replace one end with 3/4" cap and cone and carry on with 3/4" pipe.
You might get 22m pipe, but you'll also need 22mm tank connectors then.

Why make life hard ?
Unless your into self flagellation :eek:

Hecklar

Tom44 wrote: »

Why ?

As previously suggested, we use 22mm straight compressions ( readily available) replace one end with 3/4" cap and cone and carry on with 3/4" pipe.
You might get 22m pipe, but you'll also need 22mm tank connectors then.

Why make life hard ?
Unless your into self flagellation :eek:

Because I'm transferring everything over from the existing tank so I'll only need to extend/bend the existing pipe by a little and use the existing fittings. Call it a bit OCD, but I'll only irritate myself in the future if I mix the 2 types when it comes to working on it later. Ultimately I'll be moving the tank again in the not too distant future, as I'll be having a vaulted ceilings so I'm aiming to just get it functional without much hassle and just using whats there makes the most sense to me, unless I'm missing something?

The way I see it, I'll need 6 22mm elbows and 3-4 meters of pipe, so unless there was a real benefit to reducing it to 3/4, I'd just go with what's there already.

my3cents

I'm just wondering how you know for sure you have 22mm pipe runs? I've seen 3/4inch pipe connected with 22mm fittings enough times to double check myself. I even keep a clean 3/4inch and 22mm joint as a gauge. 3/4 inch pipe is a bit of a sloppy fit in a 22mm fitting but 22mm pipe won't go into a 3/4 inch fitting.

RJF

Yes, I was also thinking that it would be unusual to have a "manky old steel" water tank with metric connections, pipework and fittings.

K.Flyer

If you are swapping out the tank for a new plastic tank it makes no sense to do it all in metric, as you will also need metric tank connections as well.
Put metric to imperial connections where you cut the pipe and work away from there with 3/4" would be my suggestion.

Hecklar

my3cents wrote: »

I'm just wondering how you know for sure you have 22mm pipe runs? I've seen 3/4inch pipe connected with 22mm fittings enough times to double check myself. I even keep a clean 3/4inch and 22mm joint as a gauge. 3/4 inch pipe is a bit of a sloppy fit in a 22mm fitting but 22mm pipe won't go into a 3/4 inch fitting.

Hi, I tried fitting 3/4 in at first, assuming it would have been the same and found that I had 22mm instead. The house has been full of surprises. We found the water supply coming in on 1/2 inch copper going to 22mm up to the attic too.

Hecklar

RJF wrote: »

Yes, I was also thinking that it would be unusual to have a "manky old steel" water tank with metric connections, pipework and fittings.

I was planning on just transferring over the existing connections from the metal tank, unless I'm missing something? I was also considering just reusing the tank after a good clean but even after scraping a full bucket of crap out of it, its manky again only a few weeks later.

K.Flyer

Hecklar wrote: »

I was planning on just transferring over the existing connections from the metal tank, unless I'm missing something? I was also considering just reusing the tank after a good clean but even after scraping a full bucket of crap out of it, its manky again only a few weeks later.

Re-using an old steel tank after scraping it out is really really asking for trouble.
My advise is to get that tank out of there as quick as you can and get a new plastic tank in on a well constructed base. Otherwise you may be coming home to an unexpected new swimming pool in one of your rooms.
Btw, you will spend nearly as much on replacement nuts and rings as you would on a complete tank connector.
Cutting corners on a water storage tank installation is only asking for trouble.

Sleeper12

K.Flyer wrote: »

Re-using an old steel tank after scraping it out is really really asking for trouble.
My advise is to get that tank out of there as quick as you can and get a new plastic tank in on a well constructed base. Otherwise you may be coming home to an unexpected new swimming pool in one of your rooms.
Btw, you will spend nearly as much on replacement nuts and rings as you would on a complete tank connector.
Cutting corners on a water storage tank installation is only asking for trouble.

+1 Here

I totally missed that you planned to reuse to metal tank. You are a braver man than I am. By cleaning out the tank you are actually weakening an already damaged tank.
The average home insurance policy covers a metal tank for the first 10 years of its life. After that they don't. A new tank is a great investment.