In a dry system water flows downwards from the gutter through a sloping pipe into the top of the tank.
Gutter to tank fall.
When the rain stops the pipe empties into the tank and becomes dry that is there is no residual water in the pipe.
The gutter should have a quarter inch of slope per 10 feet.
Put another bracket about 25mm lower at the downpipe end.
The gutter pumper only generates a vacuum once the water is more than 20 mm deep and this means that a high point along a straight length of gutter is flushed prior to the vacuum starting.
The ideal fall should be approximately 300mm from the top of the inlet pipe to the top of the tank.
1 dry systems and 2 wet systems.
These pipework systems come in two forms.
These pipework systems come in two forms.
The tank can be placed on a stand or a garden tap fitted near the bottom of a tank to provide sufficient pressure to fill a watering can or a pool or slowly water a lower garden by hose.
The gutter pumpers that you have drawn are fitted at a valley.
As long as there is a fall and water does not stay in the gutter then all should be fine.
Pull the gutter down about 3 quarters of an inch lower than it originally was.
Ask someone to hold the gutter while you loosen and remove the gutter brackets or hangers.
Obviously your tank will remain empty without pipes that lead rainwater into your tank.
Ideally you want to position a water tank as close as possible to the house to avoid overhead pipes.
1 dry system and 2 wet system.
Coupled with blockage causing leaves and dirt build up water cannot flow effectively through to the downpipes and water tank.
If so you are experiencing one of the most common problems with standard guttering insufficient fall which prevents rainwater from completely draining away.
To harvest rainwater then you need to connect a pipework to a downpipe from your gutter to your tank that water can flow through.
Put a gutter bracket on at the high end.
To harvest rainwater you need to connect pipework to a downpipe from your roof gutter to your tank that water can flow through.
Put a string line between the two and put the remaining brackets up.
This causes the gutters to overflow during strong downpours.
This article will explain what a dry system is and when it is a suitable option for your property.
If the rainwater collection area and tank are more than 15m higher than the house gravity pressure can be sufficient for all domestic uses.
Put a temporary screw at the back to adjust the pitch.
The terms wet and dry refer to the type of downpipe system between the roof collection area and the tank s.