![Laundry p trap question. Can someone explain to me why the p trap has to be 6”-18” from finish floor? I understand the tail piece , but I don't understand why it Laundry p trap question. Can someone explain to me why the p trap has to be 6”-18” from finish floor? I understand the tail piece , but I don't understand why it](https://i.redd.it/0x4incr61kba1.jpg)
Laundry p trap question. Can someone explain to me why the p trap has to be 6”-18” from finish floor? I understand the tail piece , but I don't understand why it
![Oatey Heavy Duty 1-1/2 in to 1-1/4 in. Plastic Adjustable Diameter P-Trap with Reducing Washer HDC9682 - The Home Depot Oatey Heavy Duty 1-1/2 in to 1-1/4 in. Plastic Adjustable Diameter P-Trap with Reducing Washer HDC9682 - The Home Depot](https://images.thdstatic.com/productImages/800739e4-e2ec-409c-9169-5ee8decd57bf/svn/white-oatey-polypropylene-fittings-hdc9682-4f_600.jpg)
Oatey Heavy Duty 1-1/2 in to 1-1/4 in. Plastic Adjustable Diameter P-Trap with Reducing Washer HDC9682 - The Home Depot
![Plumb Pak Keeney 400WK 1.25-in. x 1.5-in. Plastic P-Trap with Reducing Washer, White, 1-1/2-Inch or 1-1/4-Inch by 1-1/2-Inch - Pipe Fittings - Amazon.com Plumb Pak Keeney 400WK 1.25-in. x 1.5-in. Plastic P-Trap with Reducing Washer, White, 1-1/2-Inch or 1-1/4-Inch by 1-1/2-Inch - Pipe Fittings - Amazon.com](https://images-na.ssl-images-amazon.com/images/I/51FWqVLXxFL._AC_UL210_SR210,210_.jpg)
Plumb Pak Keeney 400WK 1.25-in. x 1.5-in. Plastic P-Trap with Reducing Washer, White, 1-1/2-Inch or 1-1/4-Inch by 1-1/2-Inch - Pipe Fittings - Amazon.com
![DEARBORN 1-1/2" P-TRAP WITH TREADED PVC ADAPTER, REVERSIBLE J-BEND, BAGGED W/TRUE BLUE WASHER | Park Supply Company DEARBORN 1-1/2" P-TRAP WITH TREADED PVC ADAPTER, REVERSIBLE J-BEND, BAGGED W/TRUE BLUE WASHER | Park Supply Company](https://parksupplycompany.com/wp-content/uploads/2020/04/137069.jpg)
DEARBORN 1-1/2" P-TRAP WITH TREADED PVC ADAPTER, REVERSIBLE J-BEND, BAGGED W/TRUE BLUE WASHER | Park Supply Company
![Keeney 400PVCK PVC P-Trap Pipe Kit with Reducing Washer and Adapter, 1-1/2- Inch or 1-1/4-Inch x 1-1/2-Inch, White, Pipe Fittings - Amazon Canada Keeney 400PVCK PVC P-Trap Pipe Kit with Reducing Washer and Adapter, 1-1/2- Inch or 1-1/4-Inch x 1-1/2-Inch, White, Pipe Fittings - Amazon Canada](https://m.media-amazon.com/images/I/61wCfspvF5L.jpg)
Keeney 400PVCK PVC P-Trap Pipe Kit with Reducing Washer and Adapter, 1-1/2- Inch or 1-1/4-Inch x 1-1/2-Inch, White, Pipe Fittings - Amazon Canada
MUELLER INDUSTRIES LA P-TRAP W/UNION,NUTAND WASHER,1 1 - Plastic and Synthetic Pipe Fittings - WWG3GUM5 | 3GUM5 - Grainger, Canada
![Plumb Pak PP21240 Flex 'N Fix P Trap with Reducing Washer, 1-1/2" or 1-1/4" inlet - Pipes - Amazon.com Plumb Pak PP21240 Flex 'N Fix P Trap with Reducing Washer, 1-1/2" or 1-1/4" inlet - Pipes - Amazon.com](https://m.media-amazon.com/images/I/41P+6K4hXmL._AC_UF894,1000_QL80_.jpg)
Plumb Pak PP21240 Flex 'N Fix P Trap with Reducing Washer, 1-1/2" or 1-1/4" inlet - Pipes - Amazon.com
![Oatey Heavy Duty 1-1/2 in to 1-1/4 in. Plastic Adjustable Diameter P-Trap with Reducing Washer HDC9682 - The Home Depot Oatey Heavy Duty 1-1/2 in to 1-1/4 in. Plastic Adjustable Diameter P-Trap with Reducing Washer HDC9682 - The Home Depot](https://images.thdstatic.com/productImages/646434fd-7429-4b70-8a87-bfafae74dff5/svn/white-oatey-polypropylene-fittings-hdc9682-64_600.jpg)