Rainwater Catchment Systems

John’s Tree and Landscaping is looking forward to building an ongoing relationship with Heytanksla.com to further the importance of capturing and retaining water, this vital resource, for both residential and commercial properties.  Please read on and visit Heytanksla.com for more information.

Hey!Tanks LA – Water Harvesting


Our com­pany was born from a desire to keep California green and sus­tain­able for future gen­er­a­tions through Rainwater & Greywater Harvesting and Low Impact Development (LID) systems. Our mis­sion is to edu­cate the pub­lic about the region’s water plight and to offer and inspire attainable design solu­tions.

We do this through:  Edu­ca­tion and rais­ing pub­lic aware­ness, con­sul­ta­tion and design, as well as the installation and maintenance of every system we develop.  Our Rainwater and Greywater harvesting systems are unique to the Los Angeles metropolitan area as we strive to use the most advanced and sustainable local vendors and rainwater catchment systems in the industry.

Rainwater Catchment Systems


We design and install rain­wa­ter catch­ment sys­tems through­out the Los Ange­les area and sur­round­ing coun­ties. While almost any con­trac­tor can divert your down­spout into a cis­tern, a sys­tem needs to be well designed, well built and well main­tained in order to func­tion prop­erly and save you headaches down the road. Design­ing and build­ing rain­wa­ter col­lec­tion sys­tems is how we started our busi­ness. From 50 to 50,000 gal­lon tanks, we offer a wide range of options; keep­ing in mind your goals of the sys­tem, appli­ca­tion, and inte­gra­tion with your environment.

We install above and below-ground sys­tems made of poly­eth­yl­ene, fiber­glass, pre­cast con­crete, and cor­ru­gated steel. Sys­tems can often be mod­u­lar to accom­mo­date space chal­lenges. We reg­u­larly install BUSHMAN, Rain­wa­ter HOG, GRAF, XERXES, JENSEN PRECAST, ATLANTIS SYSTEMS, as well as custom-built designs. Most are used for land­scape irri­ga­tion, how­ever we aim to accom­mo­date all ben­e­fi­cial uses for your har­vested rain­wa­ter. We encour­age designs that uti­lize grav­ity when pos­si­ble, but if a pump is necessary-we’ll do the cal­cu­la­tions and install one. Fur­ther, we encour­age designs that over­flow and spread to land­scape before reach­ing the storm drain.

You may pur­chase our prod­ucts sep­a­rately through our store. When you pur­chase items from us, keep in mind we don’t sell any­thing we haven’t installed. We have first hand expe­ri­ence with every prod­uct we sell.

If you’re won­der­ing about how much water you can col­lect, here is the for­mula:
1″ of rain x 1 sq. ft. = 0.623 gal­lons or 1″ of rain from 1,000 sq. ft. will pro­vide 623 gallons.

You can find the 30-year Average monthly rainfall for your area by visiting the NCDC link here: http://www.ncdc.noaa.gov/oa/climate/online/ccd/nrmlprcp.html, as well as other use­ful cal­cu­la­tors on our resources page.

There, you can also find a list of gov­ern­ment rebates and CSM Rain Har­vest Rebate Appli­ca­tion.