Quick answer: If the bowl level drops with no puddle, water is escaping invisibly: a clogged vent siphoning the bowl, a flapper or flush valve trickling tank water in, or a hairline crack. Mark the level overnight to find which one it is — then fix the vent, the seals, or the bowl. Have you…
Quick answer: Slow + noisy almost always means the fill valve or its supply: sediment in the supply line, a worn or corroded fill valve (the hissing culprit), a clogged overflow pipe, or high pressure closing the valve early. Clean the line and overflow; replace the fill valve if it’s damaged — a cheap, 20-minute…
This page contains affiliate links. If you buy through them, Toilets Adviser may earn a commission at no extra cost to you. This does not affect our editorial opinions. Quick answer: Most weak flushes come from 3 fixes: clean the mineral-clogged rim jets and siphon jet, raise the tank water level to about 1 inch…
Quick answer: Standard toilet shut-off: 1/2-inch inlet (sweat, NPT, or PEX) × 3/8-inch compression outlet to the toilet supply line. Best type: a quarter-turn ball angle stop — it seals reliably and won’t seize like an old gate valve when an emergency hits. With over 6 years of licensed plumbing experience, I’ve encountered every toilet…
Quick answer: Four main types: float (ballcock) — cheap, noisy, basic; pressure-assisted — strong and quiet; dual flush — best water efficiency; electronic — programmable and the priciest. Most homes do fine with a modern float-cup or dual flush valve matched to their tank. When it comes to the unsung heroes of our bathrooms, toilet…
Quick answer: A normal toilet refills in about 1–3 minutes: gravity tanks take 2–3 minutes, pressure-assisted 1–2 minutes, high-efficiency about 2 minutes or less. Low water pressure, a big tank, or a tired fill valve makes it slower. How long does it take for a toilet to refill after flushing? This is a question that…
Quick answer: Use a flange plunger first — 10–15 vigorous plunges with the cup submerged. If that fails, pour in 1 cup of dish soap plus a gallon of hot water and wait 30 minutes, or work a 3-foot toilet auger through the trap. Never use Drano or caustic drain cleaner in a toilet. A…
Quick answer: A worn flapper is the number one cause — it stops sealing the flush valve, so tank water silently seeps into the bowl. Prove it with the food coloring test: dye in the tank, wait a few hours, color in the bowl means a leak. A new flapper usually fixes it in 5…
Quick answer: Yes — a toilet and sink commonly share one drain through wet venting: the sink’s pipe doubles as the toilet’s vent. The toilet keeps its own 3-inch line, slope stays 1/4 inch per foot, and sizing and venting must meet local code. Done wrong, you get gurgling, slow drains, and shared backups. Shared…
Quick answer: Yes — low flow toilets are good for septic systems. At 1.6 gpf or less (vs 3.5–7 for old toilets), they send far less water into the tank, so it treats waste more effectively and lasts longer. Pick a quality WaterSense model with a strong flush to avoid the clogging issues of early…