What is the white plastic tank inside my toilet tank?

Sunday, October 14, 2018

We came across one of these the other day and are still not entirely sure what it is. It had “Fluidmaster” stamped into the top of the plastic tank at the red arrow, so we contacted their customer service department with this photo via online chat to get some information. But the customer service agent first refused to acknowledge that it was their even their product, then begrudgingly backtracked to “it may have once been manufactured by us, but is no longer” when we noted that the company logo was embossed on top. Even then, he refused to provide any info or product history. We suspect that it was an unsuccessful contraption that is now an embarrassment to the company.

   It appears to be a tank-within-a-tank mechanism that reduces the amount of water used per flush. “I have seen a few different versions of this thing and never liked them,” according to our plumber friend, James Freeman. “I guess it’s a more sophisticated version of putting a brick or two in the tank to save water, which is what they used to do on the old three-gallon flush toilets.” 

• • • • • • • • • • • • • • • • • • • • • • • • • • • • 

Here’s links to a collection of our other blog posts about “TOILETS”: 

Why is there sand in the bottom of my toilet tank?  

Are drop-in toilet bowl cleaner tablets safe? Why is there mold inside my toilet tank?    

What are the pros and cons of a wall-mounted toilet?

What are the minimum clearances around a toilet? 

What is the little tank on top of the water heater for? 

What is that big thing in the toilet tank? 

• Can I install a commercial (wall-mounted flushometer) toilet in my home? 

Does a home inspector check toilets?

• What is the code required minimum height above a toilet? 

    Visit our PLUMBING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

site-built, mobile/manfuactured and modular homes

(placeholder)

Search

This

Site

Attics

Air Conditioner & Furnace Age/Size

AFCI, CAFCI,

DFCI, & GFCI

Bathrooms

Aging in Place

Appliances

Click Below  

for Links

to Collections

of Blog Posts

by Subject

Cracks

Doors and Windows

Electrical

Energy Efficiency

Fireplaces and Chimneys

Heating and Air Conditioning

Home Inspection

Hurricane Resistance

Electrical Receptacle Outlets

Electrical Panels

Garages and Carports

Common Problems

Exterior Walls & Structures

Insulation

Insurance

Life Expectancy

Mobile/Manufactured Homes

Older and

Historic Houses

Mold, Lead & Other Contaminants

Modular Homes

Metal Roofs

Plumbing

Radon

Pool and Spa

Roof and Attic

Remodeling

Safety

Site

"Should I Buy A..."

Stairs

Termites, Wood Rot

& Pests

Structure and Rooms

Wells

Water Heaters

Water Heater Age

Septic Tank Systems

Plumbing Pipes

Sinkholes

When It First

Became Code

Park Model Homes

Shingle Roofs

Stucco

Wind Mitigation Form

"Does A Home

Inspector...?"

"What Is The Difference Between..."

Brick

Concrete and

Concrete Block

Foundations

Rain Gutters

Condominiums

Crawl Spaces

Building Permits

Clay Soil

Floors

Toilets

Generators

HUD-Code for

Mobile Homes

Flat Roofs

Sprinkler Systems

4-Point Inspections

Frequently Asked Questions (FAQ)

Building Codes

Inspector Licensing

& Standards

Washers and Dryers

Kitchens

(placeholder)

Electrical Wiring

Plumbing Drains

and Traps

Smoke & CO Alarms

Top 5 results given instantly.

Click on magnifying glass

for all search results.

Lighting

Sinks