Yes, you can absolutely put an elbow on a drain pipe, and it is a necessary step to direct water flow around corners or transition a pipe from a vertical to a horizontal position. However, you must use the correct type of elbow and maintain a proper slope (pitch) so the drain doesn’t clog.
Yes, you can use a 90-degree elbow on a drain pipe, but only if it is a specific DWV (Drain, Waste, and Vent) fitting. You must avoid standard, sharp 90s, as they abruptly stop the flow and cause blockages.
The "135-degree rule" in plumbing states that the total (aggregate) horizontal change in direction for a drainage pipe—specifically trap arms—cannot exceed 135 degrees between the P-trap and the vent. Exceeding 135 degrees (such as using three 45-degree bends or a 90 and two 45s) requires a cleanout because sharp turns hinder flow and cause clogs.
When deciding between a PEX bend support and a standard elbow, bend supports are highly preferred for general plumbing. They eliminate leak-prone connection points and maintain excellent water flow, whereas elbows are better suited for tight spaces and precise, rigid installations.
Despite these benefits, some insurance companies have raised concerns about PEX plumbing, particularly regarding older installations: Historical issues: There were class action lawsuits against PEX manufacturers due to premature failures at connection points, resulting in leaks and flooding in some cases.
Elbows and Tees: Elbows and tees, commonly used in plumbing layouts, can further reduce the effective flow rate. The sharp angles and narrow bends slow down the flow of water compared to a straight pipe.
An elbow in plumbing is a curved pipe fitting used to change the direction of flow between two pipes. They allow pipes to easily navigate around corners, bypass obstacles, or fit into tight spaces.
"B" elbows are shaped so that as you face your downspout, it will bend to the left or right of the downspout. Height and Width are NOT exact! Made by hand with machine assistance each elbow will be very close to 90 degree and about these heights and widths.
Some common methods include relining the pipe, adhesive tapes, or using a chemical or epoxy-based solution to seal the damaged area.
To protect your plumbing and the environment, you should never put fats, starches, harsh chemicals, or solid waste down your drains.
not less than 1/8 inch per foot for 3 inch, 4 inch, 5 inch, and 6 inch pipe size. not less than 1/16 inch per foot for 8 inch and larger pipe size.
Here are the most common plumbing code violations you might not even realize you have—and why they matter.
Pouring salt down your drain at night is a popular DIY plumbing trick used for routine maintenance. The goal is to take advantage of the salt's coarse texture and natural moisture-absorbing properties.
The International Plumbing Code requires a minimum slope of 1/4 inch per foot for drain pipes 2-1/2 inches in diameter or smaller. Pipes 3 to 6 inches in diameter require at least 1/8 inch per foot. This pitch ensures wastewater and solids move together at a self-cleaning velocity toward the sewer.
Yes, you can DIY hydro jetting by attaching a specialized sewer jetter hose and nozzle kit to a high-pressure washer, but it requires caution to avoid damaging pipes or injuring yourself. While effective for clearing grease and roots, it is generally recommended to hire a professional, especially for older or clay pipes.
Leaks and Fittings Issues
PEX plumbing uses fittings and connectors that are typically made of plastic or metal. Over time, these fittings can loosen, leading to leaks. Problems can arise with crimp rings, as improper use of a crimping tool can weaken the joints.
A single 90-degree elbow reduces water pressure by an amount equal to 0.3 to 0.5 PSI under standard residential flow rates.
Generally, you can budget around $2 to $6 per square foot for a PEX repipe. So, for a 2,000-square-foot home, you might estimate a cost between $4,000 and $12,000. You can also refine your estimate by counting your plumbing fixtures.
While PEX is highly flexible, affordable, and easy to install, it can degrade under UV light and is susceptible to rodent damage. Depending on your priorities—longevity, water purity, or structural rigidity—the primary alternatives listed below outperform PEX in specific applications.
The lifespan of PEX pipes is one of their most appealing features. On average, PEX pipes can last anywhere from 40 to 50 years, and in some cases, even longer.
Did you know that PEX piping is used in about 60% of new construction projects to date? This makes it a prevalent material used in new buildings.
As the fall rains intensify and the seasons shift, one surprising tip is getting renewed attention: pouring vinegar down your drains to help prevent clogs.
A straightforward yet effective approach to addressing a clogged drain pipe involves simply using hot water mixed with dish soap. This method, ideal for tackling minor blockages, leverages the degreasing power of dish soap combined with the force of hot water to dislodge and dissolve clog-causing residue.
Stepping over three drains is considered bad luck (Image: Penny Cross / Plymouth Live) "Superstitions can be seen as fun and light-hearted, but for some people they are unshakeable rules to live by.