DIY & Tools · Accessories & Add-ons
Plumbing Supplies: What Else You'll Need
By the Nest & Yard editorial teamUpdated 2026-08-094 min read
Our pick: the Fluidmaster 400A Toilet Tank Repair Fill Valve - 2 Pack — the best Plumbing Supplies we tested, from £30.29.
Right, let's get this sorted. So, you've got your plumbing supplies in hand and are ready to tackle that leaky tap or burst pipe – fantastic! But often, the initial purchase doesn't quite cover everything you'll need for a successful project; think about essential accessories like flexible cables, secure mounting solutions, and replacement parts alongside consumables such as thread sealant and PTFE tape. This guide explores the frequently overlooked additions that can make your plumbing work smoother, safer, and ultimately, more complete.
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#1 Pick
Fluidmaster 400A Toilet Tank Repair Fill Valve - 2 Pack- Plastic
£30.29
Pros
- World-leading fill valve design fits most UK toilet cisterns
- Height adjusts from 9in to 14in without cutting the overflow pipe
- Two-pack keeps a spare on hand for the next running toilet
Cons
- Universal fit means some cisterns need a little extra trimming

#2 Pick
LOCTITE 55 Pipe Thread Sealant, Non Curing Thread Sealant for Plumbing Pipes and Fittings, 50m- Sealant Cord
£6.49
Pros
- Non-curing cord seals threaded joints instantly, no waiting to cure
- Reusable joints stay easy to dismantle for future maintenance
- 50m length lasts through many plumbing and gas jobs
Cons
- More expensive per joint than basic PTFE tape

#3 Pick
Silverline 250475 PTFE Thread Seal Tape 10 Pack, 12mm x 12m- PTFE
£4.45
Pros
- 10-pack keeps a roll in the van and one at home
- Watertight seal on standard water-pipe threads
- Compact rolls take up little toolbox space
Cons
- Not rated for gas pipework

£2.86
Pros
- Seals threaded pipe joints against water, gas and air leaks
- Cheap enough to keep a spare roll in every toolbox
- Compact roll fits easily in a pocket or plumbing bag
Cons
- Single roll only, no multi-pack option
FAQ
I've just bought a new tap wrench – what else do I need to connect it?
You’ll absolutely need some plumber's tape (also known as Teflon tape) to create a watertight seal on the threads of your pipes before fitting the wrench; this prevents leaks. Also, having a small bucket and rags handy is essential for cleaning up any spills or excess sealant you might encounter.
My plumbing supplies box didn’t include any clips – are these important?
Absolutely! Pipe clips are crucial for securing flexible hoses to walls and pipes, preventing movement and potential leaks. Check the manufacturer's specifications to determine the correct size and type of clip for your application.
What is sealant and why do I need it with my plumbing supplies?
Sealant (typically silicone-based) is used to create a watertight seal around joints where pipes connect, preventing water damage. Ensure you choose a sealant suitable for use with potable water and follow the manufacturer's instructions carefully.
I’ve received some new connectors – do I need any specific tools to fit them?
Depending on the connector type, you might require a small adjustable spanner or even specialised coupling pliers. Consult the product instructions for recommended tool requirements before commencing assembly.
My plumbing supplies included a ‘flow restrictor’ - what is this and why would I use it?
A flow restrictor limits the water flow through a pipe, often used to reduce water wastage or protect delicate appliances from high pressure. They're frequently used in shower heads and faucets to control water volume.
What kind of cleaning products should I use on my new plumbing fittings?
Avoid abrasive cleaners as they can damage the surface finish of your fittings; opt for a mild, pH-neutral cleaner specifically designed for plastic or metal plumbing components.
I'm installing a new sink – do I need to buy any drainage accessories?
Yes, you’ll almost certainly require a sink strainer basket and a waste pipe extension to connect the drain to your existing plumbing. Ensure these are compatible with both your sink and the outlet pipe.
My supplies came with some washers – what are they used for?
Washers are thin, circular discs placed between two parts being joined together to distribute pressure evenly. They’re vital for creating a secure and leak-proof connection when assembling various plumbing components.
What if I need to cut or modify my pipes – what tools will I require?
For cutting metal pipes, you'll typically need a pipe cutter; for plastic pipes, a hacksaw with a fine-toothed blade is often employed. Always wear appropriate safety gear including gloves and eye protection.
Are there any specific considerations when working with copper piping in my plumbing supplies?
Copper requires soldering to join pieces – you’ll need a propane torch, flux, solder, and sandpaper for preparation; ensure proper ventilation and follow established soldering procedures carefully.
In depth
Plumbing Supplies: What Else You'll Need
Before you embark on your plumbing project, it’s crucial to consider the supplementary items that will significantly impact its success – and often, the overall cost. Many buyers initially focus solely on the core product itself, overlooking the essential accessories, consumables, and specialist tools that are frequently required for a truly comprehensive installation or maintenance task. This isn't about inflating the price; it’s about ensuring you have everything needed from the outset to avoid costly delays, complications, and potential rework.
Firstly, let’s address the foundational elements: preparation and protection. Even seemingly straightforward plumbing tasks involve a degree of mess and require protective measures. You will almost certainly need a selection of absorbent materials – think heavy-duty towels, specialist floor mats designed for wet environments, and perhaps even drop cloths to safeguard flooring. Consider too, the potential for splashes and overspray; having readily available plastic sheeting or tarpaulins can drastically reduce cleanup time and protect surrounding surfaces. Don’t underestimate the value of a good quality work light – reliable illumination is paramount when working in confined spaces or under challenging conditions. Furthermore, ensuring adequate ventilation is key, particularly when dealing with solvents or adhesives used during certain plumbing procedures; an adjustable fan or exhaust system might prove invaluable for maintaining air quality and preventing respiratory irritation.
Beyond immediate protection, you'll invariably encounter situations demanding specialized tools – those often overlooked in the initial purchase. A comprehensive set of pipe wrenches, varying significantly in size to accommodate different diameters, is non-negotiable. Invest in a decent pair of adjustable pliers; these are incredibly versatile for gripping, twisting, and manipulating components. Similarly, a selection of hacksaws or oscillating saws with appropriate cutting blades will be necessary for trimming pipes to the correct length – accurate cuts are fundamental to successful plumbing. Don't forget about thread sealant - various types (PTFE tape, pipe dope) are vital for creating watertight connections; having multiple grades available allows you to tailor your approach to different materials and applications.
Then there’s the realm of consumables—items used repeatedly throughout the process that often aren’t included in a standard kit. Penetrating oil, for example, is invaluable when dealing with stubborn, corroded fittings or threads – its application can dramatically reduce assembly time and effort. Cleaners specifically formulated for plumbing systems – those designed to remove limescale, rust inhibitors, and other residues – are crucial for maintaining water quality and preventing blockages. Having a supply of pipe lubricants ensures smooth operation of moving parts, reducing friction and extending the lifespan of components. Similarly, rags and cleaning cloths, in various sizes and materials, will be constantly needed for wiping down tools, surfaces, and ensuring a clean working environment.
Furthermore, consider the potential for unforeseen issues – leaks, damaged fittings, or the need to make adjustments. Maintaining a small stock of replacement fittings – elbows, tees, couplings – in common sizes is prudent. Having access to appropriate sealant compounds and adhesive products ensures you can quickly repair minor damage and prevent further complications. A selection of screwdrivers (Phillips head and flathead) of varying lengths will be required for securing components and assembling accessories. And finally, a decent quality measuring tape is essential for accurate layout and cutting – precision is key in plumbing to ensure proper fit and function.
Finally, don’t forget the importance of organisation and storage. Dedicated toolboxes or storage bins are invaluable for keeping your supplies tidy and easily accessible. Labelled containers allow you to quickly locate specific items, reducing wasted time and frustration. Maintaining a clear workspace – free from clutter and obstructions – is paramount for safe and efficient working. Investing in these supplementary items upfront will not only streamline your plumbing project but also protect you from unexpected expenses and ensure a professional-quality outcome.
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-08-09.