There is discussion about fitting a low restriction inlet in many Homeone threads. Just do a forum search using the keywords.
It is simply a tank valve with a flexible hose…

I just noticed that I wrote "overflow" instead of inflow. I have edited it.

Are you off the water grid?
The amount of water that is lost is considerable and the leaf diverter's overflow characteristic is weird. I also don't understand why the upstream leaf…

If I am understanding what you have done, the change will make little difference because the height of the water column hasn't changed. Most friction loss will occur at the…

Here is a similar one except that this one overtops (insufficient hydraulic head) whereas yours pushes water forwards which indicates that the bottom of your upper downpipe is angled to…

When you check how far below the leaf diverter the standing water is, can you also do a comparison check with the other downpipes that divert into the same carrier…

If it isn't a head issue, it will invariably be a blockage. Given that it isn't the furthest downpipe from the tank on the carrier pipe, the blockage has to…

Are leaf diverters fitted to all downpipes and are they all at the same level?
Is the problem leaf diverter (shown) the one that is furthest from the house?
When it…

Should thou wish to keep thy palate sweet for sausages, avert thine eyes from their crafting.
Bunnings sell the adaptor.
Algae needs light and nutrients to exist. Having well designed leaf diverters…

Oh, it's vertical and bell-mouthed! Its overflow capacity will be massive plus the vertical extension provides more storage capacity.

The ICON adapter is very small when compared to standard 100x50x90mm adaptors and so there are less beads used in its manufacture and packaging and freight costs are a lot…

Yes, it would but it would be the height of the junction branch on the horizontal carrier pipe. Some valves use to have a locking device, an irrigation store should…

Fitting a 90-degree elbow to a tank's inlet valve just makes it neater to connect a flexible hose to as it can point to the side, downwards or anywhere in…

IT is molded with a 100 x 50mm slotted outlet that a 100 x 50mm pvc downpipe fits snuggly into but ICON also manufacture a 100 x 50 x 90mm…

I know not where thou dost abide.
Just Google "Irrigation Outlet Store Shop" and your region/area. If you can't or don't want to DIY, they will be able to recommend someone…

You need to visit an irrigation outlet.

Most downpipes fitted in WA have been in contravention of the BCA and AS 3500.3 in that the downpipe exited from the side of the gutter because the gutter sat…

I would arm myself first. Have you read through the forensic website I sent you?

Plumbers self-certify Compliance Certificates and the SS never ever checks their work. A plumber's CC proves nothing, the builder's claim is verbal diarrhoea at best and he knows it.

The Davey is a 600W pump rated at a high 470 kPa (10 kPa = 1.45 psi).
It comes with a Torrium pressure controller that can also take an 18…

The three photos below show-
1. Two linked tanks (Melbourne suburbia and a settling tank system) that are midway between two Supadivertas that service two downpipes draining approximately 40 sq m…

You would be best to desludge the tank before adding the limestone because I have a feeling that it would just sit in sludge otherwise.
The pipe type and size you…

I have been looking for a price on the 80 L Pressure Wave tank, the one I have has a base and is still in its plastic inside its box.…

You will see "reply" in grey and orange. Clicking the grey one brings up the Full Editor.
You would plumb either a tee or (preferably) a junction anywhere it suits you…

They have to be attached to the tank fitting before it is fitted. There are a few YouTube videos showing how.
I've seen diagrams of them fitted from the top but…

1. Neutralising the pH is good insurance if the house also has copper pipe.
2. Plumbing 12mm copper pipes from a pump is crazy. So obviously wrong yet so common.…

Rainwater is naturally acidic which is great for the garden but not so for thin copper pipe. To neutralise the pH, you can add some limestone chips to a close…

Best practice delivers good quality water to the tank and then delivers the best quality water in the tank to the end fixtures. It is not clever to draw high…

Have you reached out to the purveyor?
Have you perused the forum's search facility?
viewtopic.php?f=1&t=105804
Seeking reviews can also oft help but moreso before purchase.