While a bathroom sink’s design and overall size may vary from one model to the next, the drain holes are fairly standard, 1.25 inches being a general standard, with widths of 1.5 inches and 1.625 inches also common. The size of the hole helps determine which size drain is needed for that particular sink.

If it is a kitchen sink you first connection at the basket strainer requires a special washer that is flat on the top and fits into the tailpiece.

1 1/2-inch

In most cases, you can easily adapt the supply and drain pipes to accommodate two sinks, using tee fittings, special valves, extension pipes and hoses. You may have to vent each sink separately, though, depending on your local plumbing codes.

In a sense, all drains go through the floor. You cannot have a code-approved sink drain going down, unless you have a vent going up.

The “P” trap SHOULD be directly under the drain, but no more than a few inches off center of it, if conditions require it.

But why is the S trap illegal? The “S” trap is prohibited under the Uniform Plumbing Code throughout the United States. This is because the “S” trap will siphon or suck water out from the trap which will end up releasing methane (sewer) gases into the home.

Back to “S” traps – The reason “S” traps aren’t allowed is because they have the potential to suck, or ‘siphon’, water out of the trap as the water flows down the drain. Believe it or not, enough water to break the water seal at the trap and let sewer gases come in to the house.

The mechanical purpose of the trap is to hold water to prevent sewer gases containing viruses and bacteria from entering the home through the drain. With an “S” trap drain, the trap is easily siphoned dry with each use and the water seal no longer exists. A properly installed “P” trap will always maintain a water seal.

S or P Trap An S-trap or P-trap refers to the water seal at the bottom of the toilet that stops sewer gases and smells escaping into your bathroom. The set out of a toilet outlet refers to the outlet drainage point location.

P traps drain sideways & S traps drains down. from buffalo ny: don’t get “trapped” by the letters, the common P trap has both removable nuts. other less common J trap has a captive nut [where the short side of the trap has its own nut that screws upward onto the threaded wall arm].

KOHLER

It is easy to install and easy to use, that’s why most plumbers recommend Toto Eco Ultramax toilet. American Standard Champion 4 is the best no clog toilet for long lasting use. It requires 1.6 GPF water to remove waste and clean the bowl.

Here are the best no clog toilet:

• Toto MS854114ELG#01 Eco Ultramax ADA Elongated Toilet.
• American Standard 2034.014.
• Woodbridge T-0019 Dual Flush Elongated One-piece Toilet.
• Toto MS604114CEFG#01 Ultramax II best no clog toilet.
• American Standard 2988101.020 Cadet 3 FloWise Two-Piece Single Flush Toilet.

Performance-wise, there is no difference between the one-piece and two-piece toilets. They can have the same flushing power and efficiency. The interior parts are almost identical if they are from the same manufacturer. They may even have the same features and specifications.

The 7 Best Toilets for Your Home in 2021

• Best Overall: TOTO Ultramax II One-Piece Toilet Set at Amazon.
• Best Dual Flush: Glacier Bay Elongated All-in-One Toilet at Amazon.
• Best High-End: Kohler K-4007-0 San Souci Toilet at Wayfair.
• Best Noiseless: Kohler K-3978-0 Wellworth Toilet at Wayfair.
• Best Smart Toilet:
• Best Bidet-Toilet Combo:
• Best Black Toilet:

The Class Five flushing system is designed for extraordinary bulk flushing performance. Its large flush valve allows rapid release of water combined with a direct fed jet and maximizes water flow. The Ingenium has a quieter, swirling flush designed to minimize noise and clean the bowl.

The Strongest Flushing Toilet

• American Standard Cadet Pressure Assisted Toilet – the pressure assist makes this a fast flush toilet and ensures strong performance.
• TOTO Ultramax Toilet – a siphon flushing action makes this the one with the strongest toilet flush.

The Titan® flushing platform was designed to prevent clogs. This high performance toilet can flush a bucket of golf balls in a single flush. Using just 1.6 gallons, this High Efficiency Toilet produces a faster, more powerful flush that can move 70% more mass than the industry norm.

8 of The Best Tall Toilets for Elderly People

1. Convenient Height 20-Inch Extra Tall Toilet.
2. TOTO MS854114EL#01 Eco Ultramax ADA Elongated One-Piece Toilet.
3. American Standard 2467016.020 Cadet Right Height Elongated Pressure-Assisted Toilet.

The 1.6 GPF toilets use more water, thus flush better than the 1.28 GPF toilets. They flush down a heavy mass of waste and do not leave stains on the bowl. Hence, you save water when you use the 1.6 GPF toilets. You don’t have to flush twice like the 1.28 version.

Best Quiet Flush Toilets

A toilet’s flushing power is dependent on so many other factors and not just their water consumption. Some 1.6 GPF toilets flush better than some 1.28 GPF toilets and vice versa. For people whose primary objective is a water efficient toilet, a 1.28 GPF toilet is the best option.

Best Toilets For Basement

• Saniflo SaniPLUS Toilet Kit.
• Sanimove Macerating Toilet 3 piece Set.
• Liberty Pumps ASCENTII-ESW Macerating Toilet.
• INTELFLO Upflush Macerating Toilet System.
• INTELFLO 600W Macerator Pump Toilet.