can a pressure washer be connected to the same tap as a washine machine?

it certainly does , and my point is that if the original poster cuts his pipe with a hacksaw and not the cutters that is recommended in the john guest installation guide and as a result damages the O ring thus flooding his kitchen or where ever it was he plumbed his outside tap into the chances are he wont be covered by any warranty or insurance.
It can take all sorts but it usually takes a professional to do it properly.:gnthb:

i had a look at your pop up sprinklers , looks good. i take it you used barrier pipe? probably wont matter too much but if it were me i would defo fit a none return valve on there just after the ''on off'' valve , back syphonage can bring dirty water from your lawn into the mains should it occure.

you might find this interesting , in fact anyone fitting an out side tap or sprinkler system might find this info interesting.

http://www.plumbingpages.com/featurepages/Whatisbacksiphonage.cfm

my apologies if you have already taken this into account.

 

Sorry, I'm losing interest in this thread now. I've made my point, my stuff works and my garden plumbing projects excluding the recently installed one have been functioning perfectly for over 25 years.

As I said, basic plumbing isn't hard.

For you to say; "It can take all sorts but it usually takes a professional to do it properly." is just "patronising trade talk."

Check a few threads, lots of success stories on here by "non professionals" just people with a bit of common sense.

But I'm done with this thread.

 

so no none return valve then?

the ''elf n safety'' you seem so quick to brush off is there for your own good , as well as the rest of the people you might be poisoning with your 'diy' sprinkler system.
thats not "patronising trade talk." , thats really good advice , not for your sake but for the sake of the people around you.
you dont like taking advice do you , especially for someone who seems so full of it!

anyway i too am done with this thread ,i have to go and price up installing a sprinkjler system and out side tap for a neighbour. now where did i put my copy of the latest basic water regs , just to ensure i dont end up poisoning half the street.

 

Are you still having a go?

You're the one who dragged in installing central heating to a gardening thread.

If you need to "look up the regs," you obviously don't do much plumbing or didn't remember much from your four years of basic training, did you? " It ain't rocket salad."
Or are you just prone to exageration? I'm still smiling at "poisoning half the street"
People in all sorts of trades like to "big up the job." But we're only talking basics here.

Yes I have a non-return valve, fitted years ago to the supply from which my sprinklers are just an addition.
In the old days, Health n' safety we called "plain common sense."

As for advice, I certainly didn't need yours.

 

your not still mumbling on about the central heating thing are you? , please read my post properly and put it in its correct context?

your sprinkler system/out side tap needs a none return valve between them and the rest of the plumbing in your house , surely common sense would tell you that and water regs should just be to confirm this?

listen fella , im not trying to have a go here , i am only trying to help and offer you and others some advice from a professional perspective, this isnt the old days anymore we have progressed and made things safer , safer for everyone. yes common sence is required in most diy jobs so why isnt common sense telling you to fit a none return valve in this instance?

what happens if you sell the house and the new occupents leave a garden hose in a waterbutt then through back syphonage their children end up drinking contaminated water? none return valve only costs a few quid , a childs health is worth much much more.

now , stop being an old and fit a none return valve.:thumb:

 

Try reading my last post properly before jumping down my throat, particularly the bit about my non-return valve.

 

is the valve between your out side tap and the rest of your house?
im not jumping down your throat , really.

 

Thanks for your concern, it's where it should be, I added it I think, when the regulations changed, the system I originally installed in the early seventies.
Likewise all the electrical stuff in my garage and garden has a separate fuse box connected to the garage supply on the newish house fuse box. It has it's own "industrial" rccb with fused isolators for each section.

 

i had a diy electrical installation done in my shed by the houses previous owner, or the remains of one.
its comes from a 20 amp rcbo which is fair enough then it runs to the extension on the side of the house where it spurs off to two double sockets before leaving through a hole in the top of the wall just below the ceiling , across the garden to a pole on the shed then down to another fuse box in the shed. just the sight of a length of flat gray twin and earth coming out the side of the house and over to the shed like a washing line made me cringe.
The rcbo is labelled 'shed' , no warning of the twin double sockets in the extension spurred off of it.
the entire house has been diy wired , some of it is ok but some of it really makes me wonder.

 

I've mentioned elsewhere that I've no problems with the regulations regarding electrical instalations, as some home owners I wouldn't trust to fix a plug on a lead.
I've no exposed cabling other than the 12volt supply to my ornamental lanterns. The supply to the garage is via an armoured cable under the drive. The switches in the lounge for the lights in my garden are via an armoured cable that is buried under the patio and path. The supply to my koi pool pumps is in a conduit buried in the concrete collar of the pool.

Incidentally I can isolate the water supply to the three outside taps from inside the house. this is a precaution to prevent a possible burst in cold weather as the outside piping can then be drained down.

 

This thread has got silly, so back on serious stuff, a non-return check valve is not optional, it is mandatory on all outside taps and I believe on washing machine connections,

 

It depends on when the outside tap was installed. If you've had an outside tap for years, (someone is bound to know when the regulations changed), you aren't obliged to change it.
All new installations must have a non-return valve. This I believe includes any "replacements" of existing taps.

 

It's a fact that you can still buy an outside tap which hasn't got a non-return valve. If you go into a corner DIY shop, they'll ask you which type you want.
I guess the law is pretty much unenforceable in many cases as it would be impossible after a few months to determine when the tap was fitted.

I just Googled "ouside tap, law changed" and it said; 01/01/89.