1. Phase-Two
Water Detector
Phase Separation Detection

2. What is Phase Separation
Full Phase Separation: Classic Definition
Any time water enters a tank of ethanol-blended gasoline, some of it binds to ethanol and stays suspended
Continues until saturation, then ethanol-water mixture falls to bottom of tank  Phase Separation
A half-full 10’ 10k gallon tank with 20 gallons of water will lead to 5” of PS
Partial Phase Separation: More Common Occurrence
The water that does not stay suspended falls to the bottom, pulling ethanol with it  you never have pure water at the tank bottom
Occurs far more often than full phase separation; needs much less water
Can still cause same damage as full phase separation
CLEAN GASOLINE
PHASE-SEPARATED
GASOLINE
If you get water in a tank of ethanol-blended gasoline, you will get phase separation

3. Effects of Phase Separation
Ethanol is octane-booster
Removing PS leaves fuel ethanol-depleted and sub-octane
Unsellable remaining fuel
Damage to customer vehicles and brand
PS damages cars’ engines
Liability with station owner
Unhappy customers talk  6:00 news
Older tanks are only compatible to E10
PS is E75-E80
PS leads to tank corrosion
Damage to existing equipment
Left undetected, Phase Separation can corrode your tanks, your customers’ engines, and your profits

4. What phase separation can cost you
Early detection
> No cars have been affected
> No lines have been affected
Remedy
> May be automatically resolved with another delivery of fuel
> Pump out a couple inches of PS from
bottom of tank to sweeten load
Implications
> Lost fuel ($300)
> Service contractor ($300)
> Lost business ($0)
$600
Stage
Early Detection 1
Problem controllable if caught early

5. What phase separation can cost you
Later detection
> Depleted fuel now out of spec
Remedy
> Pump out entire tank of fuel
> Tank down for a few hours
Implications
> Lost fuel ($10,000)
> Service and repairs ($1,000)
> Lost business ($500)
$11,500
Stage
Clogged Filters 2
Problem quickly becomes much more expensive to remediate

6. What phase separation can cost you
Damaged vehicles
> Cars stalled out on lot
> Legal liabilities
> Damaged reputation (evening news)
Remedy
> Pump out entire tank of fuel
> Repair damaged vehicles
> Purge lines
> Brand damage control
Implications
> Lost fuel ($10,000)
> Service and repairs ($4,000)
> Lost business (unknown)
$$$$
Stage
Damaged Vehicles 3
Customer brand damage will harm your business

7. What phase separation can cost you
Petroleum infrastructure
> Tanks/piping not rated for phase separation start leaking
> EPA is at your front door
> Can bankrupt a small network
Remedy
> Extract underground tanks/piping
> Clean up leaking gas
> Deal with the EPA
Implications
> Lost fuel ($10,000)
> Service and repairs ($$$$)
> Lost business ($$$$)
Potential shutdown
Stage
Petroleum infrastructure 4
Petroleum infrastructure damage may bankrupt an entire network

8. Current Detection Methods
“Good”
“Bad”
1. Sticking tank with paste
Description
Put paste on a long stick and insert into tank
If paste changes color, indication of potential problem
Drawbacks
Do not stick tank regularly
Difficult to follow consistent procedure
Difficult to interpret results
2. Dispenser Fuel Filter
Description
Use dispenser filter specially designed for phase separation
Drawbacks
Only detects PS at dispenser, not in tank  remediation costs are higher
More frequent filter changes adds additional cost
Lack of use / awareness
3. Automatic Tank Gauge
E-10 Gasoline Layer
Traditional Water Float
Phase Separation Layer
Description
Water float sensor on electronic probe detects level of water in tank
Drawbacks
Density of phase separation may be too low to raise water float, making PS undetectable
Existing detection methods are either unreliable or detect too late

9. PHASE-TWO™ WATER DETECTOR
Inner Float (Phase Separation)
Outer Float (Water)
E-10 Gas
Inner Float Lifts
Phase Separation
Stages of Inner Float Rising
Phase Separation Detected
The Veeder-Root Phase-Two Water Detector is the first and only solution to continuously monitor and detect phase separation in an underground storage tank

10. Traditional Water Float Phase-Two Water Detector
Technical Details
Reliable detection up to E-15
Available for minimum 4” tank openings
Better performance than traditional water float, even in pure gasoline  the new standard gasoline float kit
Specification
Traditional Water Float
Phase-Two Water Detector
Reliable detection of phase separation NO
YES
Minimum Water Height
0.63”
0.38”
Minimum Fuel Height
3.1”
7.0”
Accuracy in water
± 0.10"
Accuracy in phase separation NA
+ 0.75”
Veeder-Root Compatibility
Consoles
TLS-450 (software v3A or higher)
TLS-350 / TLS-300 (software v30B or higher)
Probes
Compatible to Mag Plus probes (8463 / MAG7, 8, 9)
Not compatible with Standard Mag probes (8473 / MAG1, 2, 3)

11. Phase Separation: Summary
If you get water in a tank of ethanol-blended gasoline, you will get Phase Separation; existing detection methods are either unreliable or detect too late
The Veeder-Root Phase-Two™ Water Detector is the first and only solution to continuously monitor and detect phase separation in an underground storage tank, protecting your:
Customer Liabilities and Brand
Fuel Quality
Petroleum Equipment Infrastructure
The Phase-Two is retrofittable to your existing Veeder-Root tank gauge
The earliest detection is the only protection