In some areas it is common practice to hook the yard hydrant up direct to the Pitless adapter. This is seen more commonly in the US than in Canada.
This requires drilling a hole through the Pitless Elbow casting (centered with the lift out / pull pipe connection) to allow water to flow through the hole into the yard hydrant inlet. The well cap also needs to be modified to have a hole that lines up with the Pitless connection.
This would not have any effect on the yard hydrant warranty, the only thing that would not be covered is if the Pitless or Well Cap get damaged due to the drilling process. We would not cover any damages that have resulted from secondary modification processes done by the installer / end user. The Pitless and Well Cap would have full warranty for any manufacturing defects unrelated to the modifications.
The installation of an approved back flow protector, such as a dual check valve, is important to protect the water source from contamination due to back siphonage. This may be mandated by code; however, it is best practice to install one regardless.
This diagram is a suggested design, one for a hydrant with a Stainless Steel valve body (YHSS series) that offers superior corrosion resistance, and one for a hydrant with a Bronze valve body (YHBR series).
CAUTION:
#1 – It is the sole responsibility of the system designer, installer, and end user to ensure that the installation is in full compliance with all applicable plumbing and / or water well construction codes and regulations.
#2 – Potential for rusting: Be aware that the water draining from the drain hole in the yard hydrant valve body will run down the inside of the casing and may cause the well casing to rust. This is caused by aeration which occurs when oxygenated water or air interacts with steel casing, creating iron oxide (rust), leading to reddish-brown water, iron bacteria buildup. The installation of the 90° street elbow will direct the water downwards minimizing the water running down the casing wall.