gutter leaking during heavy downpour

[mills28]

Had gutter replaced recently and now have a downpipe that backs up slightly and leaks when rain is heavy in light to moderate rain its fine. What to do pipes are 75mm on the whole house. No leaks or issues with the other downpipes.

 

 

[AlanM52]

Hi @mills28,

I wanted to zoom in and have a closer but unable to do that because the photos are quite small and low res.

I would like us to try and confirm where the leaking starts, with assistance can you poke the hose into the downpipe until it hits the elbow.

With the garden tap turned wait to see what happens and where the leaking starts to show itself.

Please come back with the results...

Cheers

[JacobZ]

Hi @mills28,

Similar to @AlanM52, I'd like to know where the specific location of the leak is. Is it from the dropper that goes between the gutter and the downpipe, or is it from the bend in the downpipe, or is it coming through the overflows in your gutters themself?

Locating the source of the leak will likely provide answers as to what is going on and how we can address it.

Also, when the gutter was replaced, what was the reason for this? Was it not handling the volume of water before? Were there issues with the fall?

If the issue is due to a gap that is allowing water to leak, then it may be a simple case of applying some silicone to that gap, but if the issue is related to the system itself, then you may need to look at having larger diameter downpipes installed to ensure they can cope with the volume of water.

We're going to need to do some further investigation to work out what is going on.

Allow me to tag our knowledgeable members @Noyade, @Dave-1 and @Nailbag to see what they think.

Jacob

[Dave-1]

Good Afternoon @mills28 

In your pics we can see water overflowing. Is that the only point the water is overflowing? If it is then the next question is "how clear are your stormwater pipes in the ground"? 

Gutters are supposed to have a slow slope to them towards the downpipe, as your excess water looks like its baking up at that point and your other downpieps are handling the same load ok it makes me consider there could be a blockage. 

I had my gutters replaced and breathed a sigh of relief, until it rained and I had water coming out of the ground at the downpipes. Turns out that yes my gutters were shocking (could see through the rust ) but also the stormwater pipes were compressed from clay and filled with large roots. I had a plumber come out with a camera but the pipes were so far compressed we could only get a few meters in 😕

Dave

[mills28]

Hey Alan I used the hose to simulate heavy rain and the leak is from the pop and thru the rivets. Water seems to be backing up around the top in the elbow area and then letting go thru the pop and rivet

[mills28]

The leak is thru the pop and rivets and backside of the pop. Using a hose to simulate the heavy rain it appears to be getting stuck around the top of the elbow and then going thru the pop and rivets. It then subsides and flows normally. This only happens in heavy downpours. I had to replace the guttering as it was very rusted thru from evaporative airconditioning.