Hart Plumbing Spares Help & FAQs
Finding the right plumbing spare part can be confusing, especially if you’re not a plumber!
So we are here to help you with any questions you may have and help you identify the correct replacement parts for your plumbing jobs.
For component parts such as valves and cartridges our knowledgebase pages and step-by-step guide to identifying a replacement valve or cartridge will make the process easier.
Whether you’re fixing a leak, restoring water pressure or replacing a worn component, we can support you with your tap and shower repairs and help you identify the correct spare part with confidence.
Plumbing Spare FAQs
How do I know which plumbing spare part I need?
Start by identifying the problem (leak, no water flow, temperature issue). Then check which component is involved – such as a valve, cartridge, washer or seal. Measure the part where possible and compare it with our guides and images. If you’re unsure, our sales team are available to help.
What is a tap or mixer cartridge?
A cartridge is the internal component that controls water flow and temperature in a tap or mixer. Different taps use different cartridge types, sizes and fittings, so it’s important to match the correct cartridge to your tap model.
Do I need to replace the whole tap or just the spare part?
In most cases, only the faulty spare part needs replacing. A leaking or stiff tap is often caused by a worn cartridge and not the entire tap.
Are plumbing cartridges universal?
No. Cartridges vary by size, shape and stem type. Even visually similar cartridges may not be compatible. Always check measurements and specifications before ordering.
How do I measure a plumbing cartridge or valve?
Key measurements usually include overall length, diameter, stem type and length and the number of splines (if applicable). Please use our step-by-step guide on our Identification Page to help you find a suitable replacement valve or cartridge.
My shower temperature keeps changing - what’s the problem?
This is often caused by a faulty thermostatic cartridge or pressure imbalance. Replacing the cartridge usually restores consistent temperature control.
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