Photos can be added a couple of ways. The instructions are in the FAQ section.
The easiest is to use the "advanced" editor and use the "paperclip" button to add attachments from your hard drive. You can add 5 to any post; but do watch the file size limits.
If you have a 3 or 2 valve bypass system you will have valves that look like these. The valve handle can be turned 90 degrees and when "in line" with the pipe water can flow; when cross ways, it is blocked.
The idea is to turn the valves so that when you winterize with anti-freeze you can "bypass" the hot water tank (which is drained from outside by removing the anode). This will save you 6 to 10 gallons (depending on your tank size) of RV antifreeze.
The photo has the bypass closed and is set up for normal use. When winterized all valves are turned 90 degrees.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW