Joe Arnold Solar Dehydrating Toilets on Longs Peak, Rocky Mountain National Park, Colorado

2. LONGS PEAK
GEM LAKE
Rocky Mountain National Park
Grand Lake
Estes Park

5. 1970’s HELICOPTER FLY OUT OF “HONEY BUCKETS”

7. 1983
FIRST GENERATION
SOLAR TOILET AT
CHASM JCT.

9. Rocky Mountain National Park

11. Rocky Mountain National Park
TRAY EVAPORATOR

12. PHOTOVOLTAIC POWERED FAN

13. REMOVAL OF SOLID
WASTE FROM
DEHYDRATOR
BUCKET

14. REMOVAL OF SOLID WASTE
WITH LLAMAS

15. 1984 SECOND GENERATION
SOLAR TOILET AT BOULDERFIELD

16. LESSONS LEARNED/CRITERIA FOR SUCCESS:
1. EASE OF MAINTENANCE AT HIGH ELEVATION
2. MARMOT-PROOF
3. CORROSION RESISTANT
4. SURVIVE WINTER WINDS

17. MARMOT DAMAGE

18. CORROSION

19. WIND DAMAGE

20. MARMOT SOLUTIONS:
1. HARDWARE CLOTH OVER ALL SURFACES
2. FIBERGLASS COATING OVER HARDWARE CLOTH

21. CORROSION SOLUTIONS:
STAINLESS STEEL LIQUIDS BUCKET, SOLIDS BASKET,
VAULT LINING. POLYETHYLENE RISER.

22. WIND DAMAGE SOLUTIONS:
¼” GUY CABLES
STEEL ANGLE
BRACING, ETC.

23. 1990’s TO PRESENT:
3rd GENERATION

26. TO BE SUCCESSFUL:
► COMMITMENT TO MAINTENANCE!

27. TO BE SUCCESSFUL:
► COMMITMENT TO MAINTENANCE!
► PLACE TO DISPOSE OF DRIED WASTE

28. TO BE SUCCESSFUL:
► COMMITMENT TO MAINTENANCE!
► PLACE TO DISPOSE OF DRIED WASTE
► AVAILABILITY OF REPLACEMENT PARTS

29. TO BE SUCCESSFUL:
► COMMITMENT TO MAINTENANCE!
► PLACE TO DISPOSE OF DRIED WASTE
► AVAILABILITY OF REPLACEMENT PARTS
► SKILLS TO BUILD SPECIALIZED COMPONENTS

30. TO BE SUCCESSFUL:
► COMMITMENT TO MAINTENANCE!
► PLACE TO DISPOSE OF DRIED WASTE
► AVAILABILITY OF REPLACEMENT PARTS
► SKILLS TO BUILD SPECIALIZED COMPONENTS
► LOCAL CUSTOMS CONDUCIVE TO DEALING WITH
THE WASTE

31. THERE ARE NO PANACEAS!
The waste has to go somewhere…
All systems need maintenance…
WHERE DOES IT GO….??

32. Joe Arnold
Park Engineer
Rocky Mountain Nat’l Park
1000 Moraine Ave.
Estes Park, CO 80517
970-586-1234
joe_arnold@nps.gov