How To Loosen A Cast Iron Clean Out Plug

Ii or more clogged or sluggish drains frequently are the upshot of a blockage in your primary drain. Unfortunately, you lot might detect yourself upward against a fused or stuck cleanout plug when you try to admission it.

But don't worry, I'm going to show you lot how to find the cleanout to your chief drain and loosen that plug so you lot can remove the blockage.

What is a Main Drain Cleanout Plug?

A cleanout plug is a cap that covers the admission bespeak into your main bleed line. Often, these chief drains are former and made of cast iron. Over time, the parts rust, resulting in a stuck cleanout plug.

These types of caps can exist found throughout your home's plumbing system, on basement flooring drains, and the primary sewer pipe that exits your holding.

stuck cleanout plug - main drain access in basement — This is what a typical main drain cleanout looks like. Information technology is most frequently attached to a 4-inch pipe. The plug is the hat (or cap) at the bottom of this photo. Notice the squared-off nut that needs to be turned to unscrew and remove the plug.

Where is the Main Cleanout Located?

The chief cleanout is commonly near the lesser of the soil stack, in the basement or crawlspace, close to where the stack makes a 90-caste turn to leave the house. It'south at this point (the turn) that the stack becomes your main drain. It slants toward a public sewer or private septic organization.

In warmer climates, or in houses without basements, the cleanout may be outside, above the point where the main bleed leaves the foundation.

stuck cleanout plug - located outside and inside house — Typically, as shown here, you'll detect your master drain'south cleanout located in a basement or crawlspace. If you don't have either of these, wait for the cleanout outside, usually somewhere about the foundation.

How to Loosen & Remove a Stuck Cleanout Plug

Okay, at present that you lot know what a cleanout plug is, and where it is, here is a sequence of instructions (from easiest to near hard). You lot might non need to try all of these, but one of them will surely fix your problem.

ane. Preparing to Remove a Stuck Cleanout Plug

Before attempting to open the stuck cleanout cap, either shut off the master h2o supply or do not use any h2o in the house. Allow water to drain out of the arrangement, preferably overnight, so that water does not pour out subsequently the cleanout plug is off.
Have a mop, rags, pipage wrench, large metal file, and bucket ready. Depending on which solution below works best (nosotros recommend you lot try them them 1 at a time), you might also need an adjustable wrench, a common cold chisel, and a hammer.
If the cleanout plug is metal, it will probably be stubborn to remove.
Apply penetrating oil to the threads, and wait overnight before trying to remove information technology.

5 gallon bucket - plumbing emergency — Make sure to place a bucket under the cleanout plug while yous're working on it. Yous'll also want to be prepared with cleaning supplies like rags and a mop.

2. Removing a Stuck Cleanout Plug

Loosen, but do not remove, the plug with a big pipe wrench.
If the nut has been rounded off from previous repairs, first file it square with a metal file. Some cleanouts accept a metal comprehend secured by 2 brass bolts. Besides loosen and remove them, apply penetrating oil, wait a few minutes, and employ an adjustable wrench to loosen the bolts.
If it all the same does non loosen, go to the next step (#3) below.
If it does loosen, let some of the trapped water ooze out into your saucepan. Open up the plug a niggling at a time so you don't have a huge blitz of water on the floor.
With the plug finally removed, clear the blockage with an auger or garden hose (employ either to remove the blockage).

best wrench for plumbers - 12-inch pipe wrench — A large pipe wrench, and penetrating oil, will come in handy when unscrewing a cleanout plug.

3. Loosening a Stuck Cleanout Plug with a Hammer and Chisel

If the plug remains stubborn, place a cold chisel on ane edge of the nut and tap it firmly counterclockwise with a ball-peen hammer. Then move to the side by side face.
Proceed hammering until the stuck cleanout plug is loose enough to plow with a wrench.
If the nut remains stuck, move on to the next sttep (#4).

stuck cleanout plug - use hammer and cold chisel to remove — If penetrating oil doesn't work to loosen your main drain cleanout chapeau, effort a hammer and cold chisel.

4. Loosening a Stuck Cleanout Plug with Heat

If the cleanout plug remains stuck, it likely has rusted in place.
Endeavor burning off the rust around the plug with a propane torch.
The heat needed to loosen the cap dissipates rapidly, and so hold the wrench with i paw while you lot movement the torch over the rusted fitting with your other mitt.
Movement on to the next step (#5) if this doesn't piece of work.

stuck cleanout plug - loosen with heat propane torch — If the cap is rusted onto the piping, you lot tin can try called-for off the rust with a propane torch. If the cap is anywhere near materials that can burn down, identify a heat shield between information technology and the combustible fabric.

5. Loosening a Stuck Cleanout Plug by Breaking information technology

You might not experience comfortable with this stride. Let's face it, most people accept a fear of breaking things that aren't meant to be broken. However, if the cleanout plug is still stuck, y'all'll accept to destroy the cap and supercede information technology with a new one.
Using a power drill with a 3/8-inch metal chip, drill a ring of holes within i/4 inch of the edge of the plug.
With a hammer and chisel, know out the center of the plug, and so the pieces betwixt the holes.
Practise non permit the pieces fall down the main drain.
Replace the plug with a new one after you have unblocked the clog. Yous tin find a new plug (cap or chapeau) at a plumbing supply center (accept some photos with you lot of the damaged cleanout) or hardware store.

stuck cleanout plug - drill holes and break with hammer — Y'all might have to take the drastic step of breaking the plug and replacing it with a new one. Brand certain you use a drill with metal drill bits before hammering. The best drill bit to use for cast iron is a cobalt chip with a 135-caste signal angle. Or employ a aureate-colored titanium nitride bit. But any loftier-speed steel fleck will piece of work. Just exist sure to wear safety glasses.

Concluding Thoughts

Certain, this DIY job is doable. But it can be a scrap intimidating if y'all don't have an intermediate level of plumbing feel. Then, you might desire to accept a friend assist you.

The fundamental is to be patient. A stuck cleanout plug can be extremely difficult to remove. And it requires a good deal of musculus.

But if yous stick with information technology and follow the steps, as shown to a higher place, you will exist able to remove it. And from there, using an auger to articulate out, or garden hose to wash out, the blockage will be relatively easy. It will also save you an expensive call to your plumber.

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Telephone call i-Tom-Plumber

Don't hesitate to contact us here or call us at one-Tom-Plumber (1-866-758-6237) if yous need help opening any cleanout or clearing out whatsoever type of sewer line.

1-Tom-Plumber's certified team of plumbers and drain technicians respond immediately to whatsoever emergency plumbing, drain cleaning, or h2o damage trouble. We likewise handle the excavation of underground water lines and sewer main lines. Our immediate-response team is available every day and night of the year, even on holidays.