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2014

Water heater dip tubes

broken dip tube
Example show electric water heater
Gas water heater has identical dip tube
How dip tube works:
Inlets on top of tank are labeled Hot and Cold.
Water connections must be correct for water heater to work

Dip tube carries cold water to bottom of tank. Same for gas and electric water heaters.


Small risk of damage to tank:
Broken dip tube can slightly damage enamal 'glass-liner' inside water heater when it bounces around inside tank.
Read more about 'glass liner'
- Cold side is marked C for cold
- Run hot tap for a few moments, and then feel pipes on top of tank, and hot side will feel warmer
- Shut off valve is usually on cold side
Dip tube is on cold pipe
Which is cold pipe?

Dip tube located on cold side
- Less hot water, plastic piece in hot water.
- If dip tube is broken, then there is less hot water available.
- Faucets areators can also clog with plastic pieces. Read
- Debris in faucet can be caused by many things, not necessarily always the dip tube.
- Main sympton is reduced amount of hot water. Read
Symptoms of broken dip tube:
broken dip tube
- Remove tube and inspect.
- Quick-test:
Put hose on drain valve.
Open drain valve.
Do not turn off water.
If temperature of water leaving drain hose cools quickly, then dip tube is probably good.
How to test for broken dip tube
hole in dip tube

Inspection might not reveal crack


Dip tube

Blue dip tube can have anti-siphon hole

Dip tube
Dynaclean: Insert-type dip tube/ install nipple above dip tube
Types of dip tubes
Can be cut off with hack saw


Buy:
Buy dip tubes and anode rods
Water heater dip tubes at Amazon
Install curved dip tube question
dip tube
Combo dip tube is connected to cold water nipple
Use six wraps teflon tape on threads
Curved dip tube
Curved combo dip tube might work

Keep sediment stirred off bottom of tank so you have sediment in your shower head
Maybe better to drain/ flush tank each 6 months How to drain and flush
carriage bolt Removing dip tube
How to remove nipple
Rotate nipple counter-clockwise to remove
Buy:
Dielectric nipples at Amazon
Resources
Low Hot Water Pressure
How to replace short nipple
Dip tube on top of heater Location of combo type dip tube
Applies to gas and electric heaters
Illustration shwos water heater with combo anode rod located in hot water port. Also shows heat trap inserts

New water heaters have heat trap inserts, washers, or nipples/ remove insert to avoid water pressure and noise problems
Dip tube Location of insert-type dip tube
Applies to gas and electric heaters
Illustration shows water heater with anode rod located in separate anode port


New water heaters have heat trap inserts, washers, or nipples
Heat traps can cause blockage. low pressure and noise

Resources:
Heat traps: 9 ways to save with water heater
New water heater makes noise
Low hot water pressure
     How to remove dip tube Remove insert-type dip tube
Insert 2 screwdrivers into dip tube, and pull outwardon screwdrivers while lifting upwards.
Or insert bendable piece of wood, such as 1 veneer layer off plywood, cut exactly, so that wood presses out against tube, and lift while rotating counterclockwise.


Heat trap washer
Image also shows heat trap washer that is sometimes inserted over top of dip tube. If house has water pressure problems, then cut out center of heat trap washer.
Resource: 
Low water pressure
How to remove short water heater nipple
di-electrci nipple   Di-electrci nipples Use di-electric nipples for water heater connections.
Available in water heater department at local hardware and box store.

Action prevents electrolytic corrosion or electroysis caused when different metals are connected together.
Different metal pipes can also cause

Buy
Di-electric nipples

Resources:
Low hot water pressure
New water heater making noise
How to remove short water heater nipple

No dip tube if cold water port located on side of tank
Some tanks do not have standard dip tube. This tank has cold inlet located at bottom.

On regular-size 30-80 gallon tank, you can remove drain valve, and use for incoming cold water. Then use cold water port on top of tank to install second anode rod for longer tank life

Resource:
How to install under counter water heater

Identify and replace anode rod
Combo anode rod      

Check anode rod when working on dip tube

Why check anode rod? Anode prevents tank from rusting.
Extends life of water heater.
Some hot water ports have combo anode rod located in hot water port
Most tanks do not have combo anode rod, and anode installed in anode port located top of tank
Resource:
Identify and replace anode rod
How to remove short water heater nipple
Buy:
Buy dip tubes and anode rods
Water heater dip tubes at Amazon

Buy anode rods at Amazon
heat traps
See detailed image of installation
Heat traps save money
Make your own heat traps using incoming pipes.

New water heaters come with heat-trap nipples, inserts or washers.
Factory-supplied heat traps can cause clogs and noise.
Resource:
Heat traps: 9 ways to save with water heater
New water heater makes noise
Low hot water pressure

Larger image
Electrically bond hot and cold pipes to avoid stray current corrosion
Resource:
Stray current: 9 ways to save with water heater
Buy:
Ground clamps at Amazon
Ground clamps at Amazon
Ground clamp Amazon
Dump water heater from car Recycle old water heater
Tanks have life span
Recycle old water heater

Troubleshoot electric water heater
Troubleshoot gas water heater
Gas and electric water heaters Support the economy:
Buy water heaters  from my associate links:

50 gallon Gas water heaters at Amazon
40 gallon gas water heaters at Amazon
50 gallon Electric water heaters at Amazon
40 gallon electric water heaters at Amazon
Hybrid / heat pump/ water heaters at Amazon

Resources:
How to install gas water heater
Troubleshoot gas water heater
Troubleshoot electric water heater
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Control water heater w/ Z-wave
Intermatic control centers Control centers:
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Control water heater with programmable wall timer
Countdown timers Compare countdown timers

Control water heater with countdown timer
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