It's not terribly complicated, assuming that by "install a new toilet" you mean where there was alredy an existing toilet. First, remove the old toilet. Shut off the water supply valve, and flush the toilet. Then use a spone to get rid of the water that remains in the tank. Remove the nuts on the two bolts at the base of the toilet where the toilet meets the floor. These are usually hidden under two plastic caps. Now gently rock the toilet until it comes away from the floor. Get help to carry it out. Clean up the old wax that's around the flange where the pipe disappears into the floor. Don't be a wuss, it's only wax. Now you'll need the new toilet, a new supply line, new mounting bolts (don't reuse the old ones) and a two wax rings. Yes, I said two wax rings. You'll see why in a minute. Assemble the new toilet according to the instructions provided. Now here's a warning: Do NOT overtighten the bolts the hod the tank to the bowl. You're dealing with ceramics here, don't break them. Now, put the new hold-down bolts in place on the flange. Read the insturctions that came with the toilet, but you have to do this NOW. Now you'll need a helper. With the toilet upsided down, unwrap a wax ring. Make sure it's room temprature or it won't seal. Press the wax ring around the outlet flange on the base of the toilet. Now you and your helper carefully turn the toilet over without crushing the wax ring. Lift the toilet and slowly lowe it so the wax ring is centered over the "flange" which is where the sewer pipe goes into the foor. Then press the toilet firmly in place. Now if you're like most people, you screwed up here and crushed the wax ring without being centered on the flange. That's why I told you to buy two. Now you know what not to do, scrape off the first one and start again. When you've got the toilet sealed on the flange, connect and tighten the nuts on the bolts. Now you may have to use a hacksaw to cut off the remaining ends of the bolts so you can get the neat little plastic caps to fit. Now connect the water supply line. Now's where you start praying. Turn on the water and let the tank fill. Check the supply line for leaks. Fix as necessary. Now flush. Is water running out from around the base of the toilet? No? Good, you got a good seal. Yes? Very bad. Time to go back to the home center for yet another wax ring. Repeat the sealing process and get a good seal this time.
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It's not terribly complicated, assuming that by "install a new toilet" you mean where there was alredy an existing toilet. First, remove the old toilet. Shut off the water supply valve, and flush the toilet. Then use a spone to get rid of the water that remains in the tank. Remove the nuts on the two bolts at the base of the toilet where the toilet meets the floor. These are usually hidden under two plastic caps. Now gently rock the toilet until it comes away from the floor. Get help to carry it out. Clean up the old wax that's around the flange where the pipe disappears into the floor. Don't be a wuss, it's only wax. Now you'll need the new toilet, a new supply line, new mounting bolts (don't reuse the old ones) and a two wax rings. Yes, I said two wax rings. You'll see why in a minute. Assemble the new toilet according to the instructions provided. Now here's a warning: Do NOT overtighten the bolts the hod the tank to the bowl. You're dealing with ceramics here, don't break them. Now, put the new hold-down bolts in place on the flange. Read the insturctions that came with the toilet, but you have to do this NOW. Now you'll need a helper. With the toilet upsided down, unwrap a wax ring. Make sure it's room temprature or it won't seal. Press the wax ring around the outlet flange on the base of the toilet. Now you and your helper carefully turn the toilet over without crushing the wax ring. Lift the toilet and slowly lowe it so the wax ring is centered over the "flange" which is where the sewer pipe goes into the foor. Then press the toilet firmly in place. Now if you're like most people, you screwed up here and crushed the wax ring without being centered on the flange. That's why I told you to buy two. Now you know what not to do, scrape off the first one and start again. When you've got the toilet sealed on the flange, connect and tighten the nuts on the bolts. Now you may have to use a hacksaw to cut off the remaining ends of the bolts so you can get the neat little plastic caps to fit. Now connect the water supply line. Now's where you start praying. Turn on the water and let the tank fill. Check the supply line for leaks. Fix as necessary. Now flush. Is water running out from around the base of the toilet? No? Good, you got a good seal. Yes? Very bad. Time to go back to the home center for yet another wax ring. Repeat the sealing process and get a good seal this time.