Horizontal outlet (HO), what does it mean? What are the features and benefits?
Horizontal Outlet describes the angle (horizontal) at which the outlet pipe leaves the back of the WC pan. It enables easier fixing of plastic outlet pipes and is adaptable/more flexible as the pipe work can be positioned in a variety of different ways, depending on the space available, the location of the soil stack and the position of the WC in relation to the external wall. This gives the builder and the customer greater choice in where to put the toilet.
What is IO (internal overflow) and how does it work?
Overflow pipes were traditionally positioned so that any water leaking from a cistern could escape by dripping onto the floor or outside the building. This was a requirement under UK Water Byelaws to prevent waste of water: the principle was that a dripping overflow pipe was more likely to be noticed and the problem rectified. Internal Overflow is a system that allows any overflowing water from the cistern to be discharged into the toilet bowl. It is now allowed under Water Regulations January 2001.
How do you install cisterns, levers, & WCs
Fixing instructions are supplied with the product. A brief guide may be found in the Twyford Bathrooms Specification Manual.
There are small black marks on the side of my cistern. Is it faulty?
Not necessarily. Some small specks are allowed under the relevant BS (British Standard)
Where are product numbers situated on the product?
Most Twyford products have some identification marked on them. Packaging is fully labelled.
Cisterns - in the base
Cistern lid - under the lid (this also identifies the suite)
Pans - these are not marked.
Will X toilet seat fit on Y pan?
Not necessarily. See the Twyford Bathrooms Specification Manual.
P traps and S traps - what does it mean? What’s the difference?
P and S simply describe the shape of the trap. In general, an ‘S’ trap goes out through the floor and a ‘P’ trap through the back wall.
What’s the quietest WC suite Twyford make?
Although all our WCs are relatively quiet in action, in general box rim WC suites make for quieter operation.
What cisterns have lever or push-button options?
This is referred to in the Twyford Bathrooms Specification Manual
Do Twyford supply bottom-outlet pans?
Yes. Bottom outlet pans are supplied by Twyford and are available for the UK market as they meet UK Water Regulations
Do Twyford products conform to water regulations?
Yes. All Twyford WC suites fully conform with the requirements of the UK Water Regulations.
What are the strengths and weaknesses of lever operated cisterns compared with the push button cisterns?
Both systems of WC flushing have their good points and not so good points. Here is the list:-
LEVER OPERATED SYPHON CISTERN:-
• Traditional styling
• Positive/definite operation
• Good for use by people with disabilities
• Front or side operation
• Syphon operation defaults to water saving – ie totally leak free
• Lots of inexpensive spare parts in stock
• Traditional technology – understood by installers
• Easy to install – basic design used by all manufacturers
• Tends to give a slower flush – which is good for bowl cleansing
• One flush volume, only – 6 litres
• Difficult to maintain if diaphragm fails in use. Requires entire suite to be dismantled
• Cistern lid is loose - can be knocked out of position
• Tend only to be used in UK and UK markets
• Some of the parts may be in manufactured metal, which rusts
PUSH BUTTTON OPERATED VALVE;-
• Modern , slim cistern styling
• Top operation only
• Button secures the lid of the cistern - safety
• Usually factory fitted prior to despatch
• Push button operation
• Dual flush – 6 and 4 litre
• Water saving
• Very easy maintenance
• Technology is well known throughout the world
• Totally plastic – rust free
• Designs and designs of the valve vary a lot and can therefore be confusing for installers
• Spare parts are less well stocked and tend to be slightly more expensive
• Difficult to operate by people with ability problems with their hands
• Tendency to leak if not well maintained
• Tends to give a fast flush
• Dual flush buttons can be confusing to people who have not used them before
• Valve set up can be complicated if not factory fitted
• Valve “seat” can become clogged with dirt or limescale and lead to leaks
• Can be more expensive than a syphon
• Many cheap imitations on the market which are not tested and can be troublesome