Do I need a basket strainer if I have a garbage disposal?
Sophia Hammond
Updated on March 19, 2026
Do I need a basket strainer if I have a garbage disposal?
When not connecting to a garbage disposal, you will need a drain with a strainer flange and basket. The basket is used to trap food waste and prevent clogs within the drain pipe while allowing water to pass through. These drains attach to a p-trap beneath the sink, much like a lavatory drain.
Are sink strainers standard size?
Don’t worry whether the strainer can fit your sink drain or not. The standard drain opening size is 3-1/2”, and some are 4”. If you are still concerned about the size, measure the diameter of your sink drain opening like below.
Can I use a strainer on a garbage disposal?
Fits standard 3.5 inch drain openings. This is a garbage disposal flange compatible with all Insinkerator model garbage disposals. Includes deep basket strainer. Helps trap large food debris and protect your disposal and drain.
Do you need 2 drains for a garbage disposal?
A garbage disposal can be installed in either a single kitchen sink or on one half of a double sink with a strainer basket in the drain of the second half of the sink. You can install a garbage disposal in a single sink in a couple of hours with some basic hand tools.
When should you not use plumbers putty?
Do not use plumber’s putty where you need adhesive strength (to bond materials or prevent them from moving) or where you need a watertight seal in exposed areas.
Does plumbers putty harden?
If you wait for plumbers putty to dry, you’ll be waiting 10/15 years. It doesn’t “dry”, but plumbers putty will “dry out“. You can use the drain fixture immediately after installation with plumbers putty. Plumber’s putty should be pliable and easy to roll.
What is a drain basket?
The basket is the removable part that plugs the drain when you want to fill the sink with water and the strainer catches large chunks of food to prevent clogs. The Flange of the basket strainer goes on the inside of the sink and the rubber washer/gasket, paper gasket, pressure cup and nut are under the sink.
Can I use silicone sealant instead of plumbers putty?
Both plumber’s putty and silicone are sealing compounds designed to provide a water tight fit for pop up drains, sink strainers, undersides of fittings, showers and drains. Plumber’s putty is more traditional while silicone caulking is a more modern product, but either one (in most cases) can get the job done.
Are all Basket strainers the same size?
Kitchen sink basket strainers are the same size. The basket assembly can fit the sink drain opening every time. You don’t have to measure it, you don’t have to measure the size of your sink drain hole, this is the standard in the industry.
How is waste strainer measured?
Answer: the sink strainer plug measures 78mm in diameter at the top flat surface, which should snuggly fit into the plug hole, therefore your plug hole diameter should measure 78mm to fit properly. Measure your plug hole diameter by holding your measuring tape flat across the bottom of the sink.