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  • Users: MiniMe4Eng
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  1. MiniMe4Eng

    Smart Toilet bi-stable solenoid valve acting strange -what could be the reason and the fix?

    I have a smart toilet (Ove Stan) that is built using this valve Here is the valve manufacturer page but I can't say exactly which one of those is my valve. http://www.chinazhanying.com/en/products.php?cid=33&tid=32&pid=28&page=1 It is acting strange as described below I called the toilet...
  2. MiniMe4Eng

    Need help to calculate how much better (CFM) is one air filter vs the other (Truck air filters)

    I have this Dust Collector (wood working) The filter is 5microns and my garage all covered in dust because of the inefficiency of this filter. I have been using a 3M respirator when the things got really bad and I did a lot of work (this is a DIY workshop) I am now trying to replace the...
  3. MiniMe4Eng

    Using modified thinset cement and waterproofing membrane -recommended or not ?

    I am reading this website https://makeitright.ca/holmes-advice/bathroom-renovation/the-magic-of-3-thin-set-mortars/#:~:text=If%20you%E2%80%99re,not%20cure%20properly. and it says these Inmy case the membrane is going to be Redguard Are the above correct ?
  4. MiniMe4Eng

    Not sure what went wrong here, have I used the wrong type of concrete ?

    These are pictures for a small project, replacing a bath tub with a shower and changing the position Short story: it is not drying out and I am wondering if the pipe/joins cracked when the concrete cured or it is because of using the wrong type of concrete and too much water. I poured the...
  5. MiniMe4Eng

    Condense pump specs say it can push 20' high. Would it do it for 10' vertical 10' horizontal?

    Hi guys I have a condensate pupm that the manufacturer says it can push water 20' high. Will it work for 10' high and then 10' horizontal (using the 3/8" pvc pipe. I NEEd to reach a point where I bave aagravitational drain
  6. MiniMe4Eng

    Will this wet/dry vent solution work ?

    This is a sequel of a previous thread I posted here, I was trying to relocate two pipes that are in a wall that separates my toilet and my sink Below is a middle ground solution suggested by someone, I am trying to relocate the vertical grey vent in the below picture I am not clear on how the...
  7. MiniMe4Eng

    Is it OK to run a 3" drain through a jois reinforcement (pictures attached) ?

    If you need to understand why I am doing this here is why: I am trying to conceal a drain and a vent pipe in the wall of my basement (this is the outer wall of my basement) For more info see this thread https://www.eng-tips.com/viewthread.cfm?qid=472249 This is the current situation And this...
  8. MiniMe4Eng

    Is it possible to slightly reroute a drain/ vent in order to conceal it in the exterior wall?

    As you can see in the picture I am changing the position of the bath tub and the position of the sink. After asking around here I have come to the conclusion that I probably have a drain and a vent somewhere in a wall that I was planning to remove (shown replaced with a pane of glass in the...
  9. MiniMe4Eng

    Building a deck: can you shift the load points?

    Hi guys I am trying to understand if this solution is acceptable Here is the story: I was trying to help a friend to rebuild a deck and he wanted to reuse the existing piers (concrete footings). Another fried who is an architect came up with a new design but that requires us to shift the points...
  10. MiniMe4Eng

    Need help with calculating the size of a retractable shade cantilever pergola (woodl frame)

    Below is what I am trying to build H=7.5' W=8' L=10' There is an option to reinforce the structure like in the picture below. The blue line cables should be optional Can this be build of wood?
  11. MiniMe4Eng

    What would be the most probable path for the main drain of this floor plan?

    Hi guys I am having some issues with an opening in the concrete floor of a basement. It seems that it was left there on purpose but a supporting small wall was build kind of on top of it leaving like a slot still exposed to air and humidity which created some problems that I am now trying to...
  12. MiniMe4Eng

    Construction defect in basement slab under stairs in crawl space-do I need to fix this? How?

    "The winter is coming" , so I started bringing in the items that are not supposed to stay outside during the cold season. Today I removed some materials that where sitting in the crawl space under the stairs to the basement and to my surprise I discovered the below Here is a general view of the...
  13. MiniMe4Eng

    Fellow Electrical engineer needs guidance to learn about residential basement ventilation

    Hi guys I am an electrical (Electronics in fact) engineer and I am trying to educate myself in regards to how to ventilate a residential basement I don't necesarly want to waste your time with this but I would appreciate and advice. Instead I would like to ask you to recommend me some books...
  14. MiniMe4Eng

    Dark grey spots (like humidity spots) on parging.It does not seem to be water. How do I remove them?

    They look like below. I was told that it is humidity that ascends through the wall due to capilarity I have watched the area for around an year. We had a very dry summer in Toronto. These spots have not changed at all. I tried to dry them up with a hair dryer :-) but I had no luck I seems to be...
  15. MiniMe4Eng

    What is causing these spots on concrete -especially when the air humidity is increasing?

    Hi guys I have been watching this for around an year and I can't find any reason for what I am seeing. this is on my front porch, the area has roof above it and it gets those spots when it is humid outside What you see in the picture is an extreme situation. On a related note, a year ago I...
  16. MiniMe4Eng

    Digging a well to lower the water table affecting your basement -would this work?

    This is what inspired me: The well will be in the backyard and it will be used for both, the front yard and the backyard so the end result will be less water near the house in the back yard where let's say you have problems The idea here is that you do not want to pay tens or thousands...
  17. MiniMe4Eng

    Lot grading, water percolation & french drain on the property line along the fence..How2 drain t

    I am now trying to understand if the current water drainage on my lot is wrong. The previous owner excavated the soil around the house and he probably spread the soil around the house in the backyard Also my neighbor's property is on a higher grounds and I suspect his drainage is not 100% fair...
  18. MiniMe4Eng

    Is it acceptable to have a patio built on limestone screening only ?

    Hi guys I am having problems with a wet all. Here is a high level view of the layout: In this picture you can see the problems that I am having And now the story, as much as I can undestand it. The house is a bungalow built between 1955 and 1962. The soil is pretty close to clay (let' say...

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