General Terms for Installation Works

1. Hydrosight Service Details
   1. On site meeting with decision maker / project supervisor
   2. Coordination with general contractor on site operations
   3. Visual inspection and physical measurements of window openings
   4. Travel expenses, accommodation and provisioning of all Hydrosight staff and subcontractors
   5. For offered installation packages:
      • Install all windows. Hydrosight installation work includes for the following window types:
      • Adhesive flange type (for tile pools or similar): Mechanical and sealing installation
      • Foil flange type: Mechanical installation. Flanging of the foil belongs to the work of the foil welder or pool builder.
      • Cleanup/cleaning up of all debris/waste.
   6. For offered supervision of installation by Hydrosight technician on site:
      • an accompaniment of the installation is intended primarily for first-time customers. The customer will be able to install future windows without Hydrosight's assistance. The customer is provided with a Hydrosight employee for the duration of the installation. As a rule, a time in days is agreed for this employee to be on site.
      • For private customers, a suitable company must be named for the installation.
      • Unlike a lump sum installation, the risk remains with the customer during the installation.
      • All work is supervised by the Hydrosight employee. If necessary, he can also lend a helping hand or start work as an example.
2. Conditions to be met by Client
   1. Cooperation Agreement: The client can be the (pool) builder, or points out the builder in charge of the installation process. The builder points out a foreman, that will be continuously present during Hydrosight on site installation. He is able to speak at least one of the following languages: Englisch, German, Dutch. The builder company and Hydrosight agree on exchanging the knowledge that is necessary for the Hydrosight installation process. The builder is interested in cooperating with Hydrosight in future projects.
   2. Size Accuracy and Dimensional Tolerance
      1. The customer is responsible for the measurements on the site.
      2. If requested measuring can be performed by Hydrosight as part of a pre installation visit. This needs to be explicitly included in the order and is excluded if not otherwise mentioned. The pre-installation visit is subject to charges.
      3. Actual dimensions shall be communicated, in particular if they deviate from the nominal dimensions. Hydrosight must be informed in advance if there is a need for particular accuracy (especially in the case of moving floors).
      4. If a rotational laser measurement is deemed necessary for the measurement, the customer should provide a helper at his own expense.
   3. Preparatory Work
      1. The customer will check the conformity of all work steps. If the customer detects / finds deviations, he / she will report these in time before Hydrosight works on site.
      2. The customer deliver the drawings of the architect available to the seller.
      3. Concrete:
         1. the concrete has hardened for at least 20 days.
         2. the surface is free of dust, flat and open pore, untreated (in particular with respect to adhesion-reducing substances such as oil or paint)
         3. corners and edges are broken or chamfered
         4. the concrete is load-bearing, solid and free from exposed stones, holes, gaping cracks, loose parts and elevations
         5. can not be reinforced during the Hydrosight installation work.
         6. For some designs, threaded rods must be cast into the concrete. Please check Hydrosight's construction drawings for this. Anchor bolts of this type must be installed by the customer together with the concrete work. Steel quality and tolerances must be agreed with Hydrosight at an early stage.
   4. The following equipment to be provided
      1. All of the prerequisites required for the Hydrosight employee to work in the customer's country are at the customer's expense. These include, for example, mandatory safety instructions.
      2. Access to tap water
      3. 220 Volt for Schuko / Euro plug. Special requirements / requirement to work with electricity in customer's country of origin (such as the restrictions on 110V in the UK) at the expense of the customer.
      4. Air compressor with 8 bar pressure and a commercially available NW 7,2CEJN connection
      5. The possibility to dispose of the waste on site
      6. In case the situation is required: scaffolding, rain protection and 10l bucket to mix, access authorization cards and key
   5. Condition during installation
      1. No dusty work nearby installation
      2. Temperatures
         1. Minimum temperatures during installation:
            1. if Epoxy is used: 12° C
            2. if waterproofing slurry is used: 10° C
            3. if sealants (silicone) are applied on the construction site: 5°C
            4. if (Non shrink) grout is used: 5°C
         2. On Site Sealants (silicone) require a temperature between 5°C and 25°C (constant!). If the requirements demand it, the customer provides a temperature-controlled enclosure so that there are no major temperature differences when the silicone dries out.
         3. Maximum temperature below 25°C at any time of construction work.
   6. Moving and Placing the Window
      1. The client is responsible for the acceptation of the ordered goods at the construction site in relation to the shipping conditions and packing list issued by Hydrosight.
      2. All material should be stored in a protected and safe place until needed/used.
      3. Moving the goods (eg. the underwater windows) from storage to final destination:
         1. Small windows can usually be moved by hand with the help of local workforce. If extra help is necessary, the client is responsible to provide appropriate assistance. Maximum weight to lift per person (male) is 55kg according to German law.
         2. Crane
            • Windows weighing more than 100Kg usually require a crane.
            • The crane is provided by the customer.
            • The position of the crane should allow lifting the windows from the storage place. The crane is positioned in such a way that it can move the windows to their final position.
            • Crane works inside buildings, where there is no access of the crane from above, are not part of installation lump sums. If this work is not explicitly stated in the offer, the additional work will be charged.
      4. The following applies to the use of laminated safety glass (LSG): risk of breakage at any time at the customer's expense
   7. Protection of the Window after Installation
      1. Hydrosight provides protection boards and a liner on both sides of the window. The liners prevent the acrylic from being openly exposed. The liner and the protection boards should not be removed before construction is finished. The liner should not be exposed to high temperature and/or UV light for a prolonged period of time. The window (with or without protection and liner) should not be exposed to any other temperature then it is rated for. It is advised to protect the window from direct sunlight as this might cause it to heat up.
      2. It is the client's responsibility to protect the window from damage by ongoing construction or other causes.
3. Prices / Payment
   1. The installation lump sum is based on foreseeable expenditure at the time of quotation.
      • If the actual expenditure is higher and Hydrosight was not aware of the underlying cause at the time of quotation, the actual expenditure shall be invoiced.
      • Downtimes, i.e. construction site times during which Hydrosight's work is delayed through no fault of its own, will be factored separately.
      • Flat rates are calculated for one continuous site visit without interruption.
      • If work cannot proceed due to circumstances for which the client is responsible, the additional travel time will be billed.
   2. Short-term postponement of construction site appointments by the customer are subject to a charge of
      • 40% of the costs charged for the work for up to 14 days before the on-site date
      • 60% of the costs charged for up to 7 days in advance
      • 100% for cancellations less than 7 days in advance
   3. Work permits or other approvals that allow Hydrosight employees to perform their job (e.g., health and/or safety regulations), if required in the country of performance, are excluded from all lump sum quotes. The time required to obtain these permits and/or the cost will be charged extra.

Scope of the on-site work by Hydrosight:
☐ Installation supervision: If Hydrosight has offered to supervise the installation, a supervisor will be provided exclusively to monitor the work.
☐ Installation fee: Details according to offer.
☐ Other agreement: Details according to offer

I hereby confirm that I have read and understood the installation: services and conditions.

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(Place, date, name in block capitals Customer)

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(Signature, company stamp customer)