Reinstall Mounting Bracket — Install Faucet and Sink Strainer
Part of project
How to Install an Undermount Kitchen Sink · Step 4 of 9
In this video
To reinstall the mounting assembly, first apply a rope of plumber's putty around the underside of the new strainer flange, or use an upper sink flange seal. Insert the flange into the sink drain opening. From underneath the sink, place the lower sink flange seal and the flange mounting plate over the strainer flange. Position the mounting bracket against the plate and hold it up while you snap the mounting ring into the groove on the strainer flange. Evenly tighten the three screws on the bracket to secure the assembly. Scrape away any excess plumber's putty from inside the sink.
Goal: Garbage Disposal Installation
Used in this video
- Flat-Head Screwdriver (Tool Type: Hand Tools) — Tightening the three mounting bracket screws.
- Putty Knife or Scraper (Tool Type: Cleaning Tool) · optional — Removing excess plumber's putty.
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FAQs
The project is rated 'intermediate' and 8 hours. Is this accurate for a first-timer, or should I expect it to take longer?
For a first-timer, budgeting more than 8 hours is wise, as unfamiliar steps like precise sealant application, securing clips in tight spaces, and leak testing can take extra time. The 'intermediate' difficulty stems from requiring precision with sealant, proper plumbing connections, and handling a heavy sink, which all benefit from patience.
Are there any 'specialty' tools I absolutely need for an undermount sink installation that aren't common household items?
Yes, a basin wrench is crucial for tightening nuts in tight spaces behind the sink, and a high-quality caulk gun (like the Husky 10 oz.) is essential for smooth sealant application. Bar clamps (e.g., BESSEY Clutch Style) are also vital for holding the sink firmly against the countertop while the sealant cures and clips are secured, ensuring a tight, leak-proof bond.
What is the most common mistake DIYers make when installing an undermount sink, especially regarding leaks?
The most common mistake is improper sealant application or insufficient curing time, leading to leaks between the sink rim and the countertop. Ensure a continuous bead of 100% silicone sealant, press the sink firmly into place, and allow ample time for the sealant to cure before connecting plumbing and testing for leaks. Also, always use Teflon tape on threaded plumbing connections.
What are the crucial safety precautions I should take before starting this project?
Always shut off the main water supply to your kitchen or the entire house before disconnecting any plumbing. Wear appropriate eye protection throughout the process, especially when dealing with sealants or tight spaces. Ensure you have adequate support for the sink during installation to prevent it from falling, and clear your workspace to avoid tripping hazards.
Reinstall Mounting Bracket — Install Faucet and Sink Strainer
Part of project
How to Install an Undermount Kitchen Sink · Step 4 of 9
In this video
To reinstall the mounting assembly, first apply a rope of plumber's putty around the underside of the new strainer flange, or use an upper sink flange seal. Insert the flange into the sink drain opening. From underneath the sink, place the lower sink flange seal and the flange mounting plate over the strainer flange. Position the mounting bracket against the plate and hold it up while you snap the mounting ring into the groove on the strainer flange. Evenly tighten the three screws on the bracket to secure the assembly. Scrape away any excess plumber's putty from inside the sink.
Goal: Garbage Disposal Installation
Used in this video
- Flat-Head Screwdriver (Tool Type: Hand Tools) — Tightening the three mounting bracket screws.
- Putty Knife or Scraper (Tool Type: Cleaning Tool) · optional — Removing excess plumber's putty.
Frequently Asked Questions
The project is rated 'intermediate' and 8 hours. Is this accurate for a first-timer, or should I expect it to take longer?
For a first-timer, budgeting more than 8 hours is wise, as unfamiliar steps like precise sealant application, securing clips in tight spaces, and leak testing can take extra time. The 'intermediate' difficulty stems from requiring precision with sealant, proper plumbing connections, and handling a heavy sink, which all benefit from patience.
Are there any 'specialty' tools I absolutely need for an undermount sink installation that aren't common household items?
Yes, a basin wrench is crucial for tightening nuts in tight spaces behind the sink, and a high-quality caulk gun (like the Husky 10 oz.) is essential for smooth sealant application. Bar clamps (e.g., BESSEY Clutch Style) are also vital for holding the sink firmly against the countertop while the sealant cures and clips are secured, ensuring a tight, leak-proof bond.
What is the most common mistake DIYers make when installing an undermount sink, especially regarding leaks?
The most common mistake is improper sealant application or insufficient curing time, leading to leaks between the sink rim and the countertop. Ensure a continuous bead of 100% silicone sealant, press the sink firmly into place, and allow ample time for the sealant to cure before connecting plumbing and testing for leaks. Also, always use Teflon tape on threaded plumbing connections.
What are the crucial safety precautions I should take before starting this project?
Always shut off the main water supply to your kitchen or the entire house before disconnecting any plumbing. Wear appropriate eye protection throughout the process, especially when dealing with sealants or tight spaces. Ensure you have adequate support for the sink during installation to prevent it from falling, and clear your workspace to avoid tripping hazards.