One Year Later: Our Experience With the Garnet SeeLeveL 709‑BTP7 RV Tank Monitoring System

After a year of full‑time travel and real‑world use, I wanted to share our hands‑on experience with the Garnet Instruments SeeLeveL RV tank monitoring system. This is not a first‑impression or bench review — this is based on everyday RV living, regular dumping cycles, boondocking, and travel across multiple regions.


Why We Upgraded Our RV Tank Gauges

This upgrade actually started with a freshwater tank replacement.

During that project, we had full access to our tank compartments — something that doesn’t happen often in an RV. With everything already opened up, it made sense to finally address another long‑standing frustration: unreliable factory tank gauges.

Like many RVers, our coach originally relied on a traditional probe‑style monitoring system. You know the kind:

  • Reads in vague thirds (Empty / 1⁄3 / 2⁄3 / Full)
  • Frequently shows “Full” when the tank clearly isn’t
  • Becomes unreliable as soon as residue builds up inside the tank

Since the tanks were already being worked on, this was the perfect opportunity to install a system we’d been considering for a long time — Garnet Instruments’ SeeLeveL system.


The SeeLeveL System We Installed

We chose the Garnet SeeLeveL 709‑BTP7, which is their Bluetooth‑enabled, multi‑tank RV system.

Our installation includes:

  • SeeLeveL 709‑BTP7 display module
  • Bluetooth connectivity to the SeeLeveL mobile app
  • External sender strips mounted on each tank

This setup allows us to monitor:

  • Fresh water tank
  • Grey water tank
  • Black water tank
  • Propane (onboard) tank
  • Additional tanks as needed (up to 7 total)
  • Battery voltage

The Bluetooth feature means we can see all of this information directly on our phone or tablet, which fits perfectly with how we travel and live in the RV.


How the SeeLeveL System Works (And Why It’s Different)

The biggest difference with the SeeLeveL system is how it senses tank levels.

Instead of probes inside the tank, SeeLeveL uses external vertical sender strips mounted to the outside of the tank wall. These senders read the fluid level through the tank material and provide a true digital measurement.

Key advantages:

  • No sensors inside the tank to foul or corrode
  • No false readings caused by waste buildup
  • Continuous percentage‑based readings instead of “guesswork”
  • Sender strips can be trimmed or stacked to match tank height

In practice, this means the readings stay accurate — even after a year of use.


Accuracy After One Full Year of Use

This is where the SeeLeveL system really shines.

After a year of dumping cycles and refills, the readings:

  • Match actual tank levels extremely closely
  • Change smoothly as tanks fill or empty
  • Have not drifted or required recalibration

When the system says a tank is 72% full, it genuinely is. That level of precision is incredibly helpful when boondocking or planning dump stops.

This is the first RV tank monitoring system we’ve owned that we actually trust.


Bluetooth App Experience

The Bluetooth version has been a great addition.

From the app we can:

  • View all tank levels in real‑time
  • See exact percentages instead of bars or lights
  • Check battery voltage at a glance
  • Read tanks without being inside the RV

The Bluetooth connection has been stable, and the app has worked consistently across devices. It enables you to track fills and dumps on your phone as it happens.


Installation Notes

Installation was straightforward for anyone comfortable with basic RV wiring and access to tank compartments.

General steps included:

  1. Measuring tank heights
  2. Trimming and mounting sender strips
  3. Running wiring to the display module
  4. Pairing the Bluetooth unit

No drilling into tanks was required — which alone makes this system appealing.

We were able to reuse the original tank sensor wiring – a real bonus


Photos & Real‑World Readings

The photos show the monitor installed, the solid state construction of the rear view and the filling of our fresh water tank on phone & tablet. The app allows each tank to be named, you can chose the colour of the level, the three large terminals on the back view were for the pump switch.

These images clearly show how precise and readable the system is in daily use.


Overall Value & Final Thoughts (Rolling Down The Road Verdict)

After a year of use, I can confidently say:

  • The SeeLeveL system is worth every dollar
  • Accuracy has remained consistent over time
  • Bluetooth adds real‑world convenience
  • External sensors eliminate the biggest weaknesses of traditional RV gauges

If you’re tired of guessing your tank levels or dealing with unreliable factory gauges, this is an upgrade that actually delivers on its promises.


Would We Install It Again?

Absolutely — without hesitation.

The Garnet SeeLeveL RV system has become one of those upgrades you stop thinking about because it just works. And in the RV world, that’s about the highest praise you can give.


If you’re considering upgrading your RV tank monitoring system and want accurate, dependable readings, the SeeLeveL system deserves a serious look.

Day 3030

How the Mexican Postal Service Works: A Practical Guide for Travelers and Expats

If you’re traveling, living, or spending part of the year in Mexico, you may eventually need to send or receive mail. The Mexican postal service—Correos de México—works a bit differently than what many Canadians and Americans are used to. Understanding how it operates can save you time, frustration, and lost packages.

This guide explains how the Mexican postal system works, what services are available, and when you may want to use alternatives.


What Is Correos de México?

Correos de México is Mexico’s national postal service. It has been operating in various forms since the 1500s and today maintains thousands of post offices across the country, from large cities to small towns.

While it provides many of the same services as Canada Post or USPS, expectations should be adjusted. Delivery times are generally longer, and some services are better suited for documents than packages.


Addressing Mail in Mexico

One of the biggest differences is how addresses work.

A typical Mexican address looks like this:

Name
Street Name and Number
Colonia (Neighborhood)
City, State
Postal Code (Código Postal)
Mexico

Key Address Components

  • Colonia is critical and functions like a neighborhood or district.
  • Postal codes are very specific and often cover only a few blocks.
  • Rural areas may not have home delivery at all.

If you’re mailing something to Mexico, always verify the correct colonia and postal code.


Home Delivery vs. Post Office Pickup

Unlike in Canada or the U.S., home mail delivery is not guaranteed everywhere.

  • In large cities: limited home delivery may exist
  • In small towns and rural areas: mail is often held at the post office
  • Many residents use “Lista de Correos” (General Delivery)

Lista de Correos (General Delivery)

Mail is addressed to the recipient care of the local post office. The recipient must:

  • Visit the post office in person
  • Present valid photo ID
  • Ask if mail has arrived under their name

This is common practice for travelers and seasonal residents.


Services Offered by Correos de México

Regular Mail

  • Letters and postcards
  • Very affordable
  • Slow but usually reliable for non-urgent items

Registered Mail (Correo Certificado)

  • Tracking within Mexico
  • Signature required
  • Recommended for important documents

Parcel Service

  • Available, but slow
  • Limited tracking
  • Not ideal for high-value items

International Mail

  • Can take several weeks (or longer)
  • Customs delays are common
  • Tracking may stop once the item enters Mexico

How Long Does Mail Take?

Delivery times vary widely.

Type of MailTypical Time
Local letters5–10 business days
Domestic mail1–3 weeks
International mail3–6+ weeks
Parcels4–8+ weeks

Holidays, customs inspections, and regional staffing all affect timing.


Tracking Mail in Mexico

Tracking exists but is limited.

  • Registered mail can be tracked online
  • Updates may be infrequent
  • International tracking often ends once the package clears customs

For important or time-sensitive shipments, Correos tracking can be unreliable.


Customs and Import Considerations

International mail entering Mexico goes through customs.

  • Packages may be opened for inspection
  • Duties and taxes may apply
  • Some items are restricted or prohibited
  • Clearance delays are common

If duties are owed, the recipient must usually pay them before release.


When to Use Private Courier Services

Many travelers and expats prefer private carriers such as:

  • DHL
  • FedEx
  • UPS
  • Estafeta

Advantages

  • Faster delivery
  • Reliable tracking
  • Door-to-door service
  • Better customer support

Disadvantages

  • Higher cost
  • Duties are almost always assessed

For important documents, electronics, or time-sensitive items, private couriers are usually the better choice.


Tips for Travelers, RVers, and Expats

  • Use digital billing and paperless statements whenever possible
  • Have important mail sent to a trusted contact in your home country
  • Use Lista de Correos if staying long-term in one area
  • Avoid sending valuables through standard mail
  • Be patient—mail in Mexico runs on a different timeline

Is the Mexican Postal Service Reliable?

Correos de México works best when:

  • You’re not in a hurry
  • You’re sending documents or letters
  • You understand local pickup procedures

For everyday correspondence, it’s functional and inexpensive. For anything urgent or valuable, alternatives are recommended.


Back in December my son asked if we hade an address here in the Baja that he could send a Christmas Greeting, bellow is a question I posed to my AI app to see if receiving a Christmas greeting was a possibility.


What would my postal code be here at our site Latitude 31.115778 Longitude -114.914499 and where would the closest post office be?

Here’s what I can tell you about the location you’re staying at latitude 31.115778, longitude –114.914499:

📍 Likely Postal Code

Your coordinates place you in northern Mexico, just across the border from Yuma, Arizona — likely in or near San Luis Río Colorado, Sonora. In that region of Baja California / Sonora, postal codes typically fall within the 83000–85994 range for Baja California and 83000–85994 for Sonora per the Mexican postal code system (the ranges vary by state) .

  • The official Correos de México postal code for the main San Luis Río Colorado postal area is likely around 83401 — this is the postal code used at the prominent local post office in town.

However, because rural addresses can be outside the official town’s coded area, your exact site might be assigned a slightly different 5-digit code depending on local colonia / settlement name. The best way to confirm is to check with the local post office (they can lookup the exact area for you).

📮 Closest Post Office

The nearest established Mexican postal service location is likely:

Correos de México / San Luis Río Colorado, Son.

  • 📍 Address: José María Morelos y Pavón, Cuauhtémoc, 83401 San Luis Río Colorado, Sonora, Mexico
  • 🕐 Typical Hours: Weekdays 08:00–16:30; Saturday 09:00–13:00 (may vary slightly)

This is the main Correos de México post office in San Luis Río Colorado, and it’s where most mail and parcels are processed for the region.


📬 Tips for Using This Postal Code and Office

  • When addressing mail to your site, use: [Your name] [Street address / lot description] San Luis Río Colorado, Son. C.P. 83401 MÉXICO (If you have a specific street/colonia name, include it before the city.)
  • If mail carriers don’t deliver right to your site, you can have parcels held “en Lista de Correos” (general delivery) at the post office — then pick them up with your ID.
  • For parcels from abroad, include your Mexican phone number and postal code 83401 to help with customs and delivery.

📍 Summary

InfoDetails
General AreaNear San Luis Río Colorado, Sonora, Mexico
Likely Postal Code (Código Postal)83401 (verify with office)
Closest Post OfficeCorreos de México / San Luis Río Colorado, Son.

Final Thoughts

The Mexican postal service reflects Mexico itself—historic, widespread, and a bit slower paced. With the right expectations and a little planning, it can serve your needs just fine.

If you’re traveling through Mexico or living life on the road like we are, understanding how mail works is just one more step toward smoother adventures.


Day 3028