The Flow Blog

Discover what sets Merrill’s H2O Pitless Unit apart. Engineered for durability, easy installation, and code compliance, it includes a built-in expansion tank, universal VFD mount, and optional stainless steel components—all inside a 12" casing. 👉 Download the brochure, watch the install video, and hear why drillers prefer it.

At Merrill Manufacturing, we’ve worked with professionals like you for over 75 years. Here’s what we’ve learned about selecting the right yard hydrant for your application—and how to avoid costly callbacks or replacements.