Push-fit systems · GF iFIT · Project

Washing machine, dishwasher or outdoor tap: how do I extend or relocate a pipe?

This is how it works with GF iFIT: the existing connection – usually a ½ or ¾ thread – is picked up with a transition module, the run to the new location is bridged with d16 or d20 pipe, changes of direction go via elbow modules or a hand bend, and at the destination there is again a thread or tap connection. Pushed instead of pressed: chamfer, calibrate, push, check.

The plan in three questions

Where does the pipe start? At the existing connection: appliance valve, angle valve or a free thread – the iFIT transition module with female or male thread picks it up. How does the run go? Short runs exposed or in the pre-wall, longer ones in conduit; the composite pipe keeps its shape, the polybutylene pipe comes from the coil. Where does it end? At the appliance connection with a transition module and draw-off valve, at the outdoor tap with a frost-proof tap or a drainable pipe.

The steps

Shut off the water, drain the pipe, open the old connection.
Set the transition: iFIT transition module onto the existing thread – check the thread type first (female thread Rp or male thread R/G).
Lay the run: cut the pipe to length, chamfer and calibrate, adapters up to the stop, modules until they click; changes of direction with an elbow module or a hand bend within the permissible radius (external bending spring for the composite pipe).
Set the new end point: transition module with female thread for valve or tap – or tap connection module in the wall.
Pull-back test at every joint, then leak test before closing – fill, vent, test, record.

Every action in detail: step-by-step installation; which transition fits which existing installation: transitions to other systems.

What you need

One transition module per connection to the existing installation, one elbow module per change of direction, pipe length equals run plus 10 % reserve, one adapter for every push point – and with the first order the tool set (pipe shears, chamfering/calibrating tool; belongs to every first order according to the manufacturer, we include it in the enquiry). The exact list is worked out by the parts-list tool.

The limits of this project

At the outdoor tap, frost decides: lay the pipe frost-proof or make it drainable – more on this in the project garden water line. The composite pipe does not belong permanently in daylight; outdoors and at windows it is covered or laid in conduit. 70 °C and 10 bar apply (manufacturer information).

When another route is better

For long straight runs with many fixings, a press system or metal pipe can be more economical – fewer fittings, different pipe prices. The cost comparison calculator works it out with your figures.

Parts for this project from stock

Send us the parts list or tell us connection, run and destination – we put together transition, pipe, modules and tool set, also individually packed.

Send an inquiry

Your inquiry to Zickwolff

Send us what you have – designation, standard, quantity, date. We will clarify the rest with you.

One item or a question

Send inquiry

Not in stock? We procure it – single items too.

Designation, standard and quantity are enough.

Several items

Send bill of materials

200 items? One parts list is enough – we deliver complete.

Attach it as a file.

Helpful if already known: project and country, date needed, certificates, packaging and language of the packing lists. If anything is missing, we will ask.

It is urgent

Request express

When do you need it? Express delivery, to the site if required.

Tell us by when you need the material – we will tell you what is possible.

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Technical basis: GF iFIT brochures (2022, 12/2023), GF iFIT product range (07/2025), GF practice guide (08/2026) – authorised-dealer material, use approved. Test values as specified by the planner. Information without guarantee – the binding approval remains with the manufacturer.