This document discusses water and wastewater systems for hospitality facilities. It outlines various water uses in hotels including drinking, sanitation, cleaning, cooking, laundry, pools and landscaping. Hotels with more rooms and facilities tend to use more water. Water comes from municipal sources or remote locations may use wells. Proper treatment is needed for drinking water. The document also discusses wastewater systems, legionnaires' disease prevention, hot water safety, pool water treatment including saline options, and provides an example of water savings from improved laundry systems. All design teams are tasked to develop a water conservation plan for their project hotel to present next week.

1. Hospitality Facilities Design and
Planning
Week 11
Water and Wastewater Systems

2. Program today
• 4:00-5:15 Jason Lisai – Sugarbush Resort
• 5:30-6:00 Water and Wastewater Systems
• 6:00-6:45PM Project update from all teams

4. Uses of water in a hotel
• Drinking
• Sanitary use
• Cleaning
• Cooking
• Laundry
• Pools, hot tubs
• Landscaping
• Fire Safety
• Etc etc etc – you get the point!

5. Water users
• What type of hotel uses most water?
• How much? Total or per day?

6. Water turns to Sewer?
• Often hotels pay sewer fees based on water
consumption. Is that correct?
– WHAT GOES IN, GOES OUT?

7. Water sources
• City versus remote resort
• Hooking into the town water pipeline

9. Durrat Al Bahrain Desalination Plant, Bahrain
Cost: $ 30M

10. • Human uses: drinking, bathing, cooking,
washing
• Equipment uses: kitchen, laundry, spa, pool,
heating and cooling, landscaping

11. Water use reduction
• Laundry: example AQUARECYCLE
– 1,200 room Hilton in Houston, Texas monthly
water use down to 157,000 gallons from 630,000
or a drop of 75%

12. Commercial – TU 21-60 (WSC 3, 5, 6):
Consumption is no longer included with the basic charge. The volume charges are
applied to all usage. Rate Meter Size
(Inches) Basic Water Charge Basic Sewer Charge
Basic Charge
(0 consumption) 5/8 $4.51 $7.93
3/4 $4.65 $7.93
1 $5.59 $8.33
1.5 $8.46 $9.66
2 $9.96 $10.06
3 $26.36 $18.02
4 $35.93 $20.41
6 $61.58 $29.17
8 $160.79 $70.84
10 $160.79 $86.10
Volume Charge All + $3.56 per 1,000 gallons + $5.04 per 1,000 gallons

13. Houston Hilton Example
• $3.56/1000 gallons water cost
• $5.04/1000 gallons sewer cost
• Savings:
– 473 x $3.56 water = $1,700
– 473 x $5.04 sewer = $2,400
– Total per month: $4,100 or almost $50,000 per
year

14. Wastewater – two kinds:
Storm =
• Rain water removal
• Goes into local streams
Sanitary =
• Waste product from the
hotel
• Goes into wastewater
treatment facility (some
properties have own)

15. Water Quality
• Drinking water: Some systems in Vermont
using well or spring water -> regulations:
testing
– Primary concern: contamination (too close to
septic system) or fertilizers, pesticides, etc.
– Secondary: hard water: use of water softeners

16. Legionnaire’s Disease
• http://www.youtube.com/watch?v=KAgA-3l3P_0

17. Hot Water
• Uses:
– Heating of building
– Guest use
– Laundry, kitchen, etc.
– Importance of mixing valves and limiting
temperature
http://www.tap-water-burn.com/pamphlet/abstract.htm

18. Swimming Pools
• Complicated
• Balance between water temperature and
acidity/alkalinety (pH balance)
• Common treatments: chlorine and more often
ozone, ionization and other chemicals
• Better: saline treatment

19. Saline Pool Water treatment
• No Chlorine
• No red eyes
• Environmentally friendly
• Great for indoor pools (no chlorine “clouds”)

20. Water conservation
• All teams task:
– Write a water conservation plan for our project
hotel
– Present at next week’s class

21. Next Class
Organization of the Maintenance Department