Gutter reducer - connect small pipe to gutter

20vt-rs

Hi all,

I am looking for a gutter reducer to connect the downpipe to a smaller flexi pipe, even as small as a hosepipe would be fine. Diverting water away (very low volume) into a soakaway.

So rather than connecting a standard down-pipe to this:
https://www.screwfix.com/p/floplast-half-round-stop-end-outlet-black-112mm-x-68mm/28767?kpid=28767&cm_mmc=Google-_-Datafeed-_-Heating%20and%20Plumbing?kpid=KINASEKPID&cm_mmc=Google-_-TOKEN1-_-TOKEN2&ds_rl=1249404&gclid=Cj0KCQjwz8emBhDrARIsANNJjS4lL5ddiJF4JRDUwBZcza9we9p654ua1xqSGlggFDt0mRCLx7gBMi0aAqTtEALw_wcB&gclsrc=aw.ds

I would like to connect a reducer underneath and then a smaller flexi pipe to locate away.

Hope this makes sense!

CSI_Yorkshire

Look for the connectors used for joining downpipes to water butts?

grumbler

20vt-rs said:

Hi all,

I am looking for a gutter reducer to connect the downpipe to a smaller flexi pipe, even as small as a hosepipe would be fine.

It will get blocked almost instantly.

ThisIsWeird

grumbler said:

20vt-rs said:

Hi all,

I am looking for a gutter reducer to connect the downpipe to a smaller flexi pipe, even as small as a hosepipe would be fine.

It will get blocked almost instantly.

One wee leafy-weafy. Or a beeeg spider.

ThisIsWeird

Bearing in mind the provisos above, I'm going to hazard from its appearance that the OD of this connector body will not be far off the ID of a standard DP = ~65mm https://www.rainwater-terrace.com/products/40mm-downpipe-adapter If it's loose, then that's why we have Stixall... (Don't buy it until you confirm that max outer dia!)

The idea above - using a waterbutt adaptor - is a good one, tho'. If you fit a very short connecting bit of DP to the gutter outlet - just a few inches - then fit a W-B adaptor to this, and then a further short connecting piece of DP with a 'shoe' at the end to divert the water away from the wall, then the water should be sent down your 'ose until it blocks. Worst case then is that you'll see that it's blocked, and it should be easy to dismantle and sort.

Tbh, this sounds like a 'project' that can be cobbled together from the contents of the average garage. Eg, step 1 is to find a plumbing fitting with a hose connector - eg:

Then '2' is a means of fitting it into the outlet of the gutter outlet you linked to. This will only require a soft seal, as it'll be coping only with very low water pressure - 'zero'. You'll also want it easily removable to clear the inevitable blockages :-)

What internal diameter will that outlet be? If a DP is 68mm OD, then its ID will be ~65mm. If a DP fits over the outlet's outlet, then the outlet's inner dia must be around ~60mm. Look on Fb Marketplace for an offcut of rigid foam 22mm pipe insulation, the thicker type. I reckon good chance jobbie jobbed. Stixall optional...

FreeBear

grumbler said:

20vt-rs said:

Hi all,

I am looking for a gutter reducer to connect the downpipe to a smaller flexi pipe, even as small as a hosepipe would be fine.

It will get blocked almost instantly.

The first downpour will overwhelm the small pipe causing water to back up. The gutter will then overflow and any joints spray water out - It is going to soak the wall and cause problems with damp on the inside.

Downpipes need unrestricted flow to where ever the water drains away. Fitting reducers is just asking for trouble.

20vt-rs

Hi all - many thanks for taking the time to reply, I should probably explain the set up and location of what I am trying to do, for some context. I am rigging up a gutter inside a garage to catch leaky roof water (which isn't a lot), it isn't outside, but I plan on running the pipe to the front and out under the garage door into a drain. The issue I have is the roof is asbestos and having real issues getting it fixed and it's in a communal block. So, my plan b is to catch the leak inside and divert it outside. 

To do this I am running a standard gutter across the width of the garage under the roof joins where it leaks, then this is the bit I am trying to work out, is taking the water away without having to use 68mm standard pipes, something smaller would be great, and flexible better to route to the front and under the door. Doesn't sound pretty but hoping it'll resolve water getting in on the vehicle.

@ThisIsWeird I am studying your feedback to see if this will help, thank you!

FreeBear

20vt-rs said: for some context. I am rigging up a gutter inside a garage to catch leaky roof water (which isn't a lot), it isn't outside, but I plan on running the pipe to the front and out under the garage door into a drain.

You'd probably be better off using 32mm or 40mm pipe to direct the water to the drain. A small pipe will freeze up during winter.

As this is a semi-temporary fix, I'd cut a couple of disks of plywood to fit neatly in to the bottom of your downpipe outlet. Drill a hole in the middle of the disks to take the smaller pipe, and then seal everything with a liberal coat of silicone sealant. if you want to bodge it, use expanding foam in place of the plywood, but still use plenty of sealant.

ThisIsWeird

20vt-rs said:

Hi all - many thanks for taking the time to reply, I should probably explain the set up and location of what I am trying to do, for some context. I am rigging up a gutter inside a garage to catch leaky roof water (which isn't a lot), it isn't outside, but I plan on running the pipe to the front and out under the garage door into a drain. The issue I have is the roof is asbestos and having real issues getting it fixed and it's in a communal block. So, my plan b is to catch the leak inside and divert it outside. 

To do this I am running a standard gutter across the width of the garage under the roof joins where it leaks, then this is the bit I am trying to work out, is taking the water away without having to use 68mm standard pipes, something smaller would be great, and flexible better to route to the front and under the door. Doesn't sound pretty but hoping it'll resolve water getting in on the vehicle.

@ThisIsWeird I am studying your feedback to see if this will help, thank you!

Fair enough.

In which case the hose connector I linked to - for a washing machine outlet hose - could be ideal as this type of concertina'd hose is both flexible and usefully larger than a garden hose. I'm sure you can get washing-machine type/size hoses in any length you want at not much cost.

Another, simpler, option to fit that connector into the gutter outlet would be to cut a disc from any rigid plastic sheet you can find - anything! - and Stixall it inside the bottom of the outlet. First drill a suitable hole in its centre to neatly take the hose connector I linked to, and Stixall that in place too. Jobbie jobbed.

20vt-rs

ThisIsWeird said:

20vt-rs said:

Hi all - many thanks for taking the time to reply, I should probably explain the set up and location of what I am trying to do, for some context. I am rigging up a gutter inside a garage to catch leaky roof water (which isn't a lot), it isn't outside, but I plan on running the pipe to the front and out under the garage door into a drain. The issue I have is the roof is asbestos and having real issues getting it fixed and it's in a communal block. So, my plan b is to catch the leak inside and divert it outside. 

To do this I am running a standard gutter across the width of the garage under the roof joins where it leaks, then this is the bit I am trying to work out, is taking the water away without having to use 68mm standard pipes, something smaller would be great, and flexible better to route to the front and under the door. Doesn't sound pretty but hoping it'll resolve water getting in on the vehicle.

@ThisIsWeird I am studying your feedback to see if this will help, thank you!

Fair enough.

In which case the hose connector I linked to - for a washing machine outlet hose - could be ideal as this type of concertina'd hose is both flexible and usefully larger than a garden hose. I'm sure you can get washing-machine type/size hoses in any length you want at not much cost.

Another, simpler, option to fit that connector into the gutter outlet would be to cut a disc from any rigid plastic sheet you can find - anything! - and Stixall it inside the bottom of the outlet. First drill a suitable hole in its centre to neatly take the hose connector I linked to, and Stixall that in place too. Jobbie jobbed.

Thank you thats great, I do think that connector is a great option, the guttering and ends etc are pretty cheap, but as soon as you look at connectors it ramps the cost up of cobbling this together! I might see if i can try to formulate something like described by you and FreeBear with discs, got to try and be money-saving about it at the same time!! The main thing is that it works and keeps the vehicle / stuff dry in the garage, hoping this catches and diverts the blown in rain away.