Yes, you have a wet (charged) system. It is called a wet system because the pipes are always full to the height of the vertical riser that discharges water to…

Homeone is not a product review site but if your query is in reference to your other thread that discusses your internal cracking, then you can post on-topic comments there.…

The installation is substandard with several areas of concern. Do you want to know further?
The Vic Gov link also shows some amateurish installation mistakes that no one should copy.

Hi boneym,
Have you asked Daddy Pool?

The blind leading the blind.
I prefer to quote regulations but I don't have a copy of AS 2870 apart from some excerpts somewhere. The slab design experts will most probably…

Yes, the entire perimeter. You also need to ensure that water does not pool along the path's edge where it can soak down and penetrate under the path.
Whoever was…

I find it hard to believe that the builder would not have qualified that statement in any way.
There must be site drainage and an adequate slope away from the…

Despite the clever merging of the two overflow pipes to a single vertical pipe, the last photo posted also shows several common installation and design flaws. Who wants to have…

The discharge capacity should/must exceed the inflow capacity at all times and two 90mm overflow outlets haven't any hope of keeping up with the tank's inflow capability.
A horizontal outlet discharges…

Sediment traps work great and also save water by reducing the amount of water that is flushed. They need to be fitted to a non turbulent section of pipe past…

That's great.
A sub surface pipe is a buried carrier pipe.
You can also buy 5, 15 and 30 degree 100mm DWV elbows. Irrigation shops are usually much cheaper than the big…

Thanks. What area are you in? If I know that, I will be able to check your 1:20 ARI rain intensity. I also need to know the sub surface pipe…

You haven't provided any of the required information to provide an answer. For starters:
Roof area.
Regional 1:20 ARI.
Pipe size.
How many elbows, tees etc in the pipeline.

It's a sewer io.

Was the overflowing water isolated to one area?
Downpipes are installed in an elongated W pattern, the low points (bottom of the gutter's slope) being where the downpipes are fitted and…

He doesn't sound like a builder to me given that he doesn't understand the purpose of having weep holes.
Weep holes are not there for ventilation, they are there to allow…

It's a 5 year old thread, extremely unlikely that the OP is still around.
You can download the Building Code of Australia which is part 2 of the National Construction Code…

I take it that the lower gutter will have one downpipe in the middle and the others at the ends. Having the straight gutter run gives the best efficiency.
If you…

chippy, you are better at deciphering than I. I was lost on this one.

Is it one roof area? Your description is vague and contrary to the posted photo.
The calculations depend on the roof catchment area (roof space x roof slope multiplier), your region's…

Good article.

Lawyers are a waste of time, they don't know what to look out for. Double charges, poor accounting that mysteriously are invariably in the builder's favour, "Performance Solutions" that don't…

Yep...and this is yet another to add to the forum's very long list of contract issues that could/would have been avoided had there been a pre contract signing consultation with…

These are my scant forum search results for LB living.
search.php?keywords=LB+living

I cannot stress strongly enough that anyone considering building should have a precontract signing consultation with a well qualified industry professional (NOT a solicitor) who specialises in such. There have…

1,1 m high definitely needed to be engineered. You should follow up the engineer's advice by repeating the advice in writing and asking for his written confirmation of same.

How high is the wall? If the wall had to have engineering certification, you should speak to the engineer.

Of interest...
The Victorian Building Authority (VBA) Technical Solution Sheet 4:05 recommended the use of sub surface DWV pipes for charged rainwater systems but they never mandated it. I have just…