Sims Plastics has been meeting the needs of oilfield, residential, commercial, government, wholesale and retail customers since 1979. Our massive inventory, broad selection, quality name brands, knowledgeable salespeople and friendly service personnel combine to make Sims your #1 source for irrigation and septic systems, parts and supplies.

Come on in—We’ve been expecting you!


Part# ENC4AN1

The Apollo® insulated enclosure is certified to ASSE 1060 and consists of 1/8” thick UV stabilized LMDP (linear medium density polyethylene). Made from a minimum 1” thick polyisocyanate insulation (R-8 value) that is not glued or pinned in place. The enclosure features a lockable drop-over design with drains designed for one-way exit, inhibiting debris and/or vermin intrusion, and specially sized for full port backflow discharge. The enclosure’s mounting provisions allow it to be anchored to a concrete slab with steel anchors and requires a padlock(s) for utilizing the full security capabilities.

When required, thermostatically controlled heat protects the piping and equipment from exterior temperatures of up to -30º F. Heat source must be a UL or ETL listed self-regulating cable(s) sized to maintain the equipment at +40º F, in accordance with NFPA 3- 3.1.8 & 3- The heat source and electrical supply must be mounted a minimum of 8” above the slab unless it is UL or ETL certified, and NEC approved for submersion.


– ASSE 1060 approved
– Small footprint
– Polyethylene shell
– Molded-in insulation
– Vandal and theft protection
– Heated option for freeze protection
– Mounting hardware included


Part # 4A505A2F

The Apollo® Pressure Vacuum Breaker A Series prevents contamination of the potable water supply due to back-siphonage. A standard integral freeze protection relief valve serves to reduce the possibility of damage due to intermittent freezing conditions. The modular check valve cartridge provides a captured spring, a replaceable seat, and a reversible silicone seat disc. This assembly features ball valve shutoffs with stainless steel handles and nuts as standard.


Simple and effective, this split insulation tube is a quick and easy way to insulate your pipes.

Part #118BT – 3/4″ SPLIT INSULATION 3/8″ WALL
Part #158BT – 1-1/4″ SPLIT INSULATION 3/8 WALL
Part #278CT – 2-1/2″ SPLIT INSULATION 1/2 WALL
Part #2BT – 1-1/2″ SPLIT INSULATION 3/8 WALL
Part #78BT – 1/2″ SPLIT INSULATION 3/8″ WALL

As the inventors of flexible foam for equipment insulation and a leading provider of engineered foams, Armacell® develops innovative and safe thermal, acoustic and mechanical solutions that create sustainable value for its customers.

Armacell® focuses on insulation materials for technical equipment, high-performance foams for high-tech and lightweight applications and next generation aerogel blanket technology.

Our vision is to be the global leader in providing innovative, technical insulation solutions and components to conserve energy and make a difference around the world.

Apollo Valves is part of the stock listed company Aalberts. Since the inception in 1975, Aalberts is where technology matters and real progress can be made – humanly, financially and environmentally. At Aalberts, we create mission-critical technologies for ground-breaking industries and everyday life. Technologies that enhance our clients’ businesses and keep our planet in good shape.

Aalberts integrated piping systems develops and produces connectors, metal and plastic pipes, valves, and fastening technology for the distribution and control of liquids and gases. Our technologies enable customers to work quickly and reliably in a simple and efficient way.

These bespoke systems are applicable for key verticals as residential commercial, industrial, and utilities, and are designed and developed by our team of in-house engineers. This complete piping and valve solution combined with our services are available through different channels.


All contractors are licensed.

To be featured on our Contractor Spotlight List – please contact Sims Plastics and let us know! We will be rotating the companies on this list in future Focal*Points issues.

Licensed Septic Contractors
– Bulls Septic (Odessa/Midland) 432-202-9177
– J&B services (Odessa/Midland) 432-260-0092
– Terrett Septic Tank Co. (Odessa/Midland) 432-684-6427
– Bobby Stalvey (Odessa/Midland) 432-684-7143
– K&M Contracting (Waco) 254-292-9669
– Brookshire Septic (Waco) 254-744-0194
– Jernan Construction (Waco) 254-848-4848
Licensed Irrigators
– ROTH Irrigation (Odessa/Midland) 432-238-2310
– Hart Irrigation (Odessa/Midland) 432-238-2310
– All Star Sprinkler (Odessa/Midland) 432-880-4825
– Eternal Trees & Landscape (Odessa/Midland) 432-269-6988
– Living Water Irrigation (Odessa/Midland) 432-631-2138
– CLS Clements Lawn (Odessa/Midland) 432-520-4657
– CGW Lawn Sprinkler (Waco) 254-723-8278
– Talbert Irrigation (Waco) 254-218-3517
– Rain on Demand (Waco) 254-855-7106


Tips and Tricks
To Help Your Customers Prepare for Winter!

Below are procedures that you can share with your customers to help them choose the right winterization products for their needs. Here are a few ideas on how you can use these tips to add value to your customers or as a prospecting tool for your business:

1. Print out the preformatted tips page and give it to your customers when you show up to give an estimate, to provide services, or – mail it along with your invoice if you’ve already finished a job.

2. Add your logo or company letterhead and email the preformatted tips page to any of your existing customers as a reminder about winterizing their irrigation system along with a message that you would be happy to handle their irrigation projects for them. Or you can offer the tips alongside a pre-packaged irrigation or septic service plan where you offer to handle these things for them for a set cost.

3. Offer these tips to local HOA or neighborhood associations for use in their newsletter or to post on their message boards along with your contact information in case residents need help with their plumbing, irrigation, or septic projects.

Let us help you winterize your irrigation systems to prepare for the colder months!

How to Winterize Your Sprinkler System:

Step 1: Shut Off the Water

It will come as no surprise that the first step is turning off the water to the system with a main valve that’s usually found near your water meter. If your system has valves to prevent backflow, shut these off too. There are usually two of these valves that lead into the backflow device; be sure to shut them both off. If your system doesn’t use potable water, it might not have a backflow preventer.

Step 2: Turn Off the Timer

If your system runs on an automatic timer, make sure you shut that off. Some systems have a “rain mode” that allows you to essentially power down the timer without losing any programmed information or settings. Allowing the system to run in rain mode throughout the winter is usually safe and shouldn’t run up your energy costs. In the spring, you can turn the rain mode off, and the timer should resume working normally.

Step 3: Drain the Water

It’s not enough just to keep water from flowing into the system; you also need to drain out the water that’s already in there. This is the biggest and most time-consuming step in the process, but it’s absolutely vital. There are three main methods of drainage depending on what type of sprinkler system you have.

Step 4: Insulate Above-Ground Components

Finally, make sure that all the above-ground parts of the sprinkler system are properly insulated from the weather. The main shut-off valve, plus any exposed pipes or backflow preventers, should be wrapped in foam covers or insulation tape. On the backflow preventers, make sure not to block any air vents or drain outlets.

Do all sprinkler systems have a master valve?
Master valves are a common component in most irrigation systems, but they are not always required. A master valve is an automatic valve that is installed at the point where the irrigation system connects to the water supply.
Will sprinkler heads freeze?
Water can also freeze inside sprinkler heads themselves. As the frozen water expands, the pressure from the ice can pop off sprinkler heads.
How long does it take pipes to freeze at 32 degrees?
Pipes can freeze in as little as six to eight hours, meaning they can freeze overnight. If the outside temperature is below 32 º F and your pipes are unprotected, your chances for a frozen pipe increase dramatically.
Is there a main shut-off valve for sprinkler system?
Locate the main shutoff valve on your irrigation system. It is between the main water supply to your home and the sprinkler controller. Alternately, the main shutoff may be located outdoors near a faucet bib. Check for a box in this area which is designed to protect your main valve from the elements.
How do you winterize a sprinkler system with a backflow preventer?
Turn off water to the backflow preventer. Most have an isolation shutoff valve located below ground before the backflow preventer. Open test cocks on the backflow preventer to drain all the water from it. Once water is drained, close both shutoff valves with a one-quarter counterclockwise turn.
Should you leave sprinkler valves open in winter?

Manual valves should be left in the open position throughout winter to prevent re-pressurization. Some sprinkler heads have both side and bottom pipe inlets. If you use the side inlet, install a drain valve on the bottom inlet to prevent the case from freezing.