New Tri-Boro Trailer Site Has Arrived

Out With The Old and In With The New! Sorting through various products and pages can be overwhelming, so we wanted to make Tri-Boro Trailer’s website more efficient than ever. Our newly redesigned website has enhanced, user-friendly features giving site visitors ease when navigating through pages, printable PDF’s, guidelines, and much more. What Else Is… Read more »


The pieces of Mr. John

At Mr. John, we are passionate about our work and delivering reliable service to our customers each and every time.  Quality makes a difference and here is what separates us from the competition.


Oh, the places we’ll go!

Whether you have a job in Pittsburgh PA or Nashville TN, Mr. John is ready to handle all of your portable sanitation needs. Our portable toilets come in all shapes, sizes and varieties. We can add a sink, a sling or a heater to any portable toilet in our fleet. We have restrooms perfect for… Read more »


My time at Mr. John – by Allee

When you’re a kid you imagine you’ll have a firefighter’s or a doctor’s job. But you never expect to find a job working in the office of a portable toilet company in Pittsburgh. I got lucky, and this is my first “real” job. I say real in quotations not because this isn’t a serious job…. Read more »


6 Reasons You Should Choose a Flushing Toilet Rental

Apart from the convenience of having clean portable restrooms at large events, outdoor events or events where the indoor toilets cannot keep up with the demand, there are many benefits of portable sanitation. Flushing portable toilets take these benefits to the next level, providing an effective and environmentally friendly way to keep your event as… Read more »


Planning For Your Summertime Sanitation Needs

Graduation. Cookouts. Weddings. Parties. Bonfires. Summertime is almost here and it’s time to relax and celebrate the good times in our lives. It’s almost time to pull out the sunscreen, hit the beach and just lay back and enjoy the sunset. Time to spend time with family and old friends and reminisce about the good… Read more »


Prepping Your Worksite for Winter

The winter months are approaching. As a construction site manager, it is important to begin the planning process in order to prepare your worksite and protect your important capital equipment. Office trailers for rent as well as mobile storage containers are just some of the essential additions you’ll need to keep your site safe and operational,… Read more »


5 Misconceptions About the Porta Potty

Portable toilets have undergone a considerable evolution since the inception of outhouses and other varieties of outdoor plumbing facilities. Those first outhouses were no more than permanent or semi-permanent structures placed over dugout pits, which either had to be periodically emptied, or an entirely new pit had to be dug and the structure moved along… Read more »