• By Hanover Plumbing
• In General, Plumbing, Tips
• Tags Bathrooms, NZ Homes, Plumber Gasfitter, Plumbing Advice, Renovations, Showers

Shower Repair – To Replace or Repair?

If your shower has started leaking, having a pressure issue, or having a temperature control issue – you are going to want to fix it quickly to protect your house and keep your morning routine enjoyable.
If you are a homeowner or first-time buyer and have an old shower in your hands, repair may not be possible and you will have no options but to start from scratch. This guide will give you all the information you need to weigh your options and make your decision easier.

Can I fix the shower leak myself or do I need a plumber?

This depends entirely on the type of problem or leak, and your home refurbishment/plumbing experience. Continue reading for tips on how to repair or replace the shower yourself and when to decide that you need to consult an expert.

How to fix a leaking shower

The first step is to identify the exact cause of the leak. In most cases, it is one of the following causes:

• Shower head
• Valve
• Shower hose

Only the showerhead is leaking. This is the easiest bug to fix. The step-by-step guide is as follows:

What you need:

• White vinegar
• Old toothbrush
• Plumber PTFE tape
• Plier
• Thread sealing tape
• Replacement disc (probably)

1. Clean the showerhead with white vinegar and water
The showerhead collects debris and scales over time. This causes clogging and prevents water from flowing properly. Soak in a mixture of white vinegar and water before rinsing cleanly. Rub the showerhead completely with an old toothbrush.

2. Secure the O-ring with PTFE tape Check the
O-ring (also known as the washer). A small rubber ring that prevents water from leaking from the connection between the hose and the showerhead. If it looks damaged or worn, replace it.

3. Reinstall the showerhead and replace the water.
Reinstall the shower head and tighten it by hand until it feels firm. Put the water back in and see if it flows smoothly.

If the showerhead still leaks, it’s safe to say it’s probably out of date. Keep in mind that you may need to get a replacement and replace the hose as well.

How to fix a leaking shower valve

If the leak is  from a shower valve, it’s a more complicated situation and it’s not always easy or impossible to fix. The step-by-step guide is as follows:

What you need:

• White Vinegar
• Pliers
• Plumbers Putty
• Replacement Washer
• Screwdriver
• PTFE Tape
• (Probably) Replacement Washer

1. Disassemble the valve
Turn off your water at the mains and remove the handle from the valve. Sometimes you can easily remove the screws with a screwdriver, but each shower is different, so it’s a good idea to refer to the shower instructions. This allows you to remove the cover plate and trim to access the valve. This will display a gasket (usually a rubber ring).

2. Replace all washers
Position the shower rail where the hose or pipe connects to the valve itself. A removable cover may be there in which case, take this off. Remove and replace all washers (small rubber rings) on the shower rod. This is easier and less time-consuming than testing and repeating the entire process.

Check the shower rail for damage. This can also be the cause of the leak.

3. Reassemble the valve
Before reassembling the valve (in reverse order of disassembly), thoroughly clean the exposed pipe with a mixture of white vinegar and water.
Now turn on the faucet again and turn on the shower. There should be no leaks.
If the leak persists, try a suitable service kit for the shower before replacing the shower completely.

How to replace the shower hose

If the shower hose is leaking, getting a replacement hose (with a suitable end fitting for the shower) should solve the problem.

When to replace a leaking shower

If none of the above has worked for you, it is probably time to replace the shower.
This is the job of an advanced DIY enthusiast. If you have general plumbing experience and specific pipe soldering experience, you should be fine. If not you can contact one of our plumbers for an obligation-free quote.